{
  "type": "Program",
  "body": [
    {
      "type": "ExpressionStatement",
      "expression": {
        "type": "Literal",
        "value": "use strict",
        "raw": "\"use strict\"",
        "range": [
          0,
          12
        ],
        "loc": {
          "start": {
            "line": 1,
            "column": 0
          },
          "end": {
            "line": 1,
            "column": 12
          }
        }
      },
      "range": [
        0,
        13
      ],
      "loc": {
        "start": {
          "line": 1,
          "column": 0
        },
        "end": {
          "line": 1,
          "column": 13
        }
      }
    },
    {
      "type": "VariableDeclaration",
      "declarations": [
        {
          "type": "VariableDeclarator",
          "id": {
            "type": "Identifier",
            "name": "chai_1",
            "range": [
              18,
              24
            ],
            "loc": {
              "start": {
                "line": 2,
                "column": 4
              },
              "end": {
                "line": 2,
                "column": 10
              }
            }
          },
          "init": {
            "type": "CallExpression",
            "callee": {
              "type": "Identifier",
              "name": "require",
              "range": [
                27,
                34
              ],
              "loc": {
                "start": {
                  "line": 2,
                  "column": 13
                },
                "end": {
                  "line": 2,
                  "column": 20
                }
              }
            },
            "arguments": [
              {
                "type": "Literal",
                "value": "chai",
                "raw": "'chai'",
                "range": [
                  35,
                  41
                ],
                "loc": {
                  "start": {
                    "line": 2,
                    "column": 21
                  },
                  "end": {
                    "line": 2,
                    "column": 27
                  }
                }
              }
            ],
            "range": [
              27,
              42
            ],
            "loc": {
              "start": {
                "line": 2,
                "column": 13
              },
              "end": {
                "line": 2,
                "column": 28
              }
            }
          },
          "range": [
            18,
            42
          ],
          "loc": {
            "start": {
              "line": 2,
              "column": 4
            },
            "end": {
              "line": 2,
              "column": 28
            }
          }
        }
      ],
      "kind": "var",
      "range": [
        14,
        43
      ],
      "loc": {
        "start": {
          "line": 2,
          "column": 0
        },
        "end": {
          "line": 2,
          "column": 29
        }
      }
    },
    {
      "type": "VariableDeclaration",
      "declarations": [
        {
          "type": "VariableDeclarator",
          "id": {
            "type": "Identifier",
            "name": "Rx",
            "range": [
              48,
              50
            ],
            "loc": {
              "start": {
                "line": 3,
                "column": 4
              },
              "end": {
                "line": 3,
                "column": 6
              }
            }
          },
          "init": {
            "type": "CallExpression",
            "callee": {
              "type": "Identifier",
              "name": "require",
              "range": [
                53,
                60
              ],
              "loc": {
                "start": {
                  "line": 3,
                  "column": 9
                },
                "end": {
                  "line": 3,
                  "column": 16
                }
              }
            },
            "arguments": [
              {
                "type": "Literal",
                "value": "../../dist/cjs/Rx",
                "raw": "'../../dist/cjs/Rx'",
                "range": [
                  61,
                  80
                ],
                "loc": {
                  "start": {
                    "line": 3,
                    "column": 17
                  },
                  "end": {
                    "line": 3,
                    "column": 36
                  }
                }
              }
            ],
            "range": [
              53,
              81
            ],
            "loc": {
              "start": {
                "line": 3,
                "column": 9
              },
              "end": {
                "line": 3,
                "column": 37
              }
            }
          },
          "range": [
            48,
            81
          ],
          "loc": {
            "start": {
              "line": 3,
              "column": 4
            },
            "end": {
              "line": 3,
              "column": 37
            }
          }
        }
      ],
      "kind": "var",
      "range": [
        44,
        82
      ],
      "loc": {
        "start": {
          "line": 3,
          "column": 0
        },
        "end": {
          "line": 3,
          "column": 38
        }
      }
    },
    {
      "type": "VariableDeclaration",
      "declarations": [
        {
          "type": "VariableDeclarator",
          "id": {
            "type": "Identifier",
            "name": "Observable",
            "range": [
              87,
              97
            ],
            "loc": {
              "start": {
                "line": 4,
                "column": 4
              },
              "end": {
                "line": 4,
                "column": 14
              }
            }
          },
          "init": {
            "type": "MemberExpression",
            "computed": false,
            "object": {
              "type": "Identifier",
              "name": "Rx",
              "range": [
                100,
                102
              ],
              "loc": {
                "start": {
                  "line": 4,
                  "column": 17
                },
                "end": {
                  "line": 4,
                  "column": 19
                }
              }
            },
            "property": {
              "type": "Identifier",
              "name": "Observable",
              "range": [
                103,
                113
              ],
              "loc": {
                "start": {
                  "line": 4,
                  "column": 20
                },
                "end": {
                  "line": 4,
                  "column": 30
                }
              }
            },
            "range": [
              100,
              113
            ],
            "loc": {
              "start": {
                "line": 4,
                "column": 17
              },
              "end": {
                "line": 4,
                "column": 30
              }
            }
          },
          "range": [
            87,
            113
          ],
          "loc": {
            "start": {
              "line": 4,
              "column": 4
            },
            "end": {
              "line": 4,
              "column": 30
            }
          }
        },
        {
          "type": "VariableDeclarator",
          "id": {
            "type": "Identifier",
            "name": "UnsubscriptionError",
            "range": [
              115,
              134
            ],
            "loc": {
              "start": {
                "line": 4,
                "column": 32
              },
              "end": {
                "line": 4,
                "column": 51
              }
            }
          },
          "init": {
            "type": "MemberExpression",
            "computed": false,
            "object": {
              "type": "Identifier",
              "name": "Rx",
              "range": [
                137,
                139
              ],
              "loc": {
                "start": {
                  "line": 4,
                  "column": 54
                },
                "end": {
                  "line": 4,
                  "column": 56
                }
              }
            },
            "property": {
              "type": "Identifier",
              "name": "UnsubscriptionError",
              "range": [
                140,
                159
              ],
              "loc": {
                "start": {
                  "line": 4,
                  "column": 57
                },
                "end": {
                  "line": 4,
                  "column": 76
                }
              }
            },
            "range": [
              137,
              159
            ],
            "loc": {
              "start": {
                "line": 4,
                "column": 54
              },
              "end": {
                "line": 4,
                "column": 76
              }
            }
          },
          "range": [
            115,
            159
          ],
          "loc": {
            "start": {
              "line": 4,
              "column": 32
            },
            "end": {
              "line": 4,
              "column": 76
            }
          }
        }
      ],
      "kind": "var",
      "range": [
        83,
        160
      ],
      "loc": {
        "start": {
          "line": 4,
          "column": 0
        },
        "end": {
          "line": 4,
          "column": 77
        }
      },
      "trailingComments": [
        {
          "type": "Block",
          "value": "* @test {UnsubscriptionError} ",
          "range": [
            161,
            195
          ],
          "loc": {
            "start": {
              "line": 5,
              "column": 0
            },
            "end": {
              "line": 5,
              "column": 34
            }
          }
        }
      ]
    },
    {
      "type": "ExpressionStatement",
      "expression": {
        "type": "CallExpression",
        "callee": {
          "type": "Identifier",
          "name": "describe",
          "range": [
            196,
            204
          ],
          "loc": {
            "start": {
              "line": 6,
              "column": 0
            },
            "end": {
              "line": 6,
              "column": 8
            }
          }
        },
        "arguments": [
          {
            "type": "Literal",
            "value": "UnsubscriptionError",
            "raw": "'UnsubscriptionError'",
            "range": [
              205,
              226
            ],
            "loc": {
              "start": {
                "line": 6,
                "column": 9
              },
              "end": {
                "line": 6,
                "column": 30
              }
            }
          },
          {
            "type": "FunctionExpression",
            "id": null,
            "params": [],
            "body": {
              "type": "BlockStatement",
              "body": [
                {
                  "type": "ExpressionStatement",
                  "expression": {
                    "type": "CallExpression",
                    "callee": {
                      "type": "Identifier",
                      "name": "it",
                      "range": [
                        246,
                        248
                      ],
                      "loc": {
                        "start": {
                          "line": 7,
                          "column": 4
                        },
                        "end": {
                          "line": 7,
                          "column": 6
                        }
                      }
                    },
                    "arguments": [
                      {
                        "type": "Literal",
                        "value": "should create a message that is a clear indication of its internal errors",
                        "raw": "'should create a message that is a clear indication of its internal errors'",
                        "range": [
                          249,
                          324
                        ],
                        "loc": {
                          "start": {
                            "line": 7,
                            "column": 7
                          },
                          "end": {
                            "line": 7,
                            "column": 82
                          }
                        }
                      },
                      {
                        "type": "FunctionExpression",
                        "id": null,
                        "params": [],
                        "body": {
                          "type": "BlockStatement",
                          "body": [
                            {
                              "type": "VariableDeclaration",
                              "declarations": [
                                {
                                  "type": "VariableDeclarator",
                                  "id": {
                                    "type": "Identifier",
                                    "name": "err1",
                                    "range": [
                                      352,
                                      356
                                    ],
                                    "loc": {
                                      "start": {
                                        "line": 8,
                                        "column": 12
                                      },
                                      "end": {
                                        "line": 8,
                                        "column": 16
                                      }
                                    }
                                  },
                                  "init": {
                                    "type": "NewExpression",
                                    "callee": {
                                      "type": "Identifier",
                                      "name": "Error",
                                      "range": [
                                        363,
                                        368
                                      ],
                                      "loc": {
                                        "start": {
                                          "line": 8,
                                          "column": 23
                                        },
                                        "end": {
                                          "line": 8,
                                          "column": 28
                                        }
                                      }
                                    },
                                    "arguments": [
                                      {
                                        "type": "Literal",
                                        "value": "Swiss cheese tastes amazing but smells like socks",
                                        "raw": "'Swiss cheese tastes amazing but smells like socks'",
                                        "range": [
                                          369,
                                          420
                                        ],
                                        "loc": {
                                          "start": {
                                            "line": 8,
                                            "column": 29
                                          },
                                          "end": {
                                            "line": 8,
                                            "column": 80
                                          }
                                        }
                                      }
                                    ],
                                    "range": [
                                      359,
                                      421
                                    ],
                                    "loc": {
                                      "start": {
                                        "line": 8,
                                        "column": 19
                                      },
                                      "end": {
                                        "line": 8,
                                        "column": 81
                                      }
                                    }
                                  },
                                  "range": [
                                    352,
                                    421
                                  ],
                                  "loc": {
                                    "start": {
                                      "line": 8,
                                      "column": 12
                                    },
                                    "end": {
                                      "line": 8,
                                      "column": 81
                                    }
                                  }
                                }
                              ],
                              "kind": "var",
                              "range": [
                                348,
                                422
                              ],
                              "loc": {
                                "start": {
                                  "line": 8,
                                  "column": 8
                                },
                                "end": {
                                  "line": 8,
                                  "column": 82
                                }
                              }
                            },
                            {
                              "type": "VariableDeclaration",
                              "declarations": [
                                {
                                  "type": "VariableDeclarator",
                                  "id": {
                                    "type": "Identifier",
                                    "name": "err2",
                                    "range": [
                                      435,
                                      439
                                    ],
                                    "loc": {
                                      "start": {
                                        "line": 9,
                                        "column": 12
                                      },
                                      "end": {
                                        "line": 9,
                                        "column": 16
                                      }
                                    }
                                  },
                                  "init": {
                                    "type": "NewExpression",
                                    "callee": {
                                      "type": "Identifier",
                                      "name": "Error",
                                      "range": [
                                        446,
                                        451
                                      ],
                                      "loc": {
                                        "start": {
                                          "line": 9,
                                          "column": 23
                                        },
                                        "end": {
                                          "line": 9,
                                          "column": 28
                                        }
                                      }
                                    },
                                    "arguments": [
                                      {
                                        "type": "Literal",
                                        "value": "User too big to fit in tiny European elevator",
                                        "raw": "'User too big to fit in tiny European elevator'",
                                        "range": [
                                          452,
                                          499
                                        ],
                                        "loc": {
                                          "start": {
                                            "line": 9,
                                            "column": 29
                                          },
                                          "end": {
                                            "line": 9,
                                            "column": 76
                                          }
                                        }
                                      }
                                    ],
                                    "range": [
                                      442,
                                      500
                                    ],
                                    "loc": {
                                      "start": {
                                        "line": 9,
                                        "column": 19
                                      },
                                      "end": {
                                        "line": 9,
                                        "column": 77
                                      }
                                    }
                                  },
                                  "range": [
                                    435,
                                    500
                                  ],
                                  "loc": {
                                    "start": {
                                      "line": 9,
                                      "column": 12
                                    },
                                    "end": {
                                      "line": 9,
                                      "column": 77
                                    }
                                  }
                                }
                              ],
                              "kind": "var",
                              "range": [
                                431,
                                501
                              ],
                              "loc": {
                                "start": {
                                  "line": 9,
                                  "column": 8
                                },
                                "end": {
                                  "line": 9,
                                  "column": 78
                                }
                              }
                            },
                            {
                              "type": "VariableDeclaration",
                              "declarations": [
                                {
                                  "type": "VariableDeclarator",
                                  "id": {
                                    "type": "Identifier",
                                    "name": "source1",
                                    "range": [
                                      514,
                                      521
                                    ],
                                    "loc": {
                                      "start": {
                                        "line": 10,
                                        "column": 12
                                      },
                                      "end": {
                                        "line": 10,
                                        "column": 19
                                      }
                                    }
                                  },
                                  "init": {
                                    "type": "CallExpression",
                                    "callee": {
                                      "type": "MemberExpression",
                                      "computed": false,
                                      "object": {
                                        "type": "Identifier",
                                        "name": "Observable",
                                        "range": [
                                          524,
                                          534
                                        ],
                                        "loc": {
                                          "start": {
                                            "line": 10,
                                            "column": 22
                                          },
                                          "end": {
                                            "line": 10,
                                            "column": 32
                                          }
                                        }
                                      },
                                      "property": {
                                        "type": "Identifier",
                                        "name": "create",
                                        "range": [
                                          535,
                                          541
                                        ],
                                        "loc": {
                                          "start": {
                                            "line": 10,
                                            "column": 33
                                          },
                                          "end": {
                                            "line": 10,
                                            "column": 39
                                          }
                                        }
                                      },
                                      "range": [
                                        524,
                                        541
                                      ],
                                      "loc": {
                                        "start": {
                                          "line": 10,
                                          "column": 22
                                        },
                                        "end": {
                                          "line": 10,
                                          "column": 39
                                        }
                                      }
                                    },
                                    "arguments": [
                                      {
                                        "type": "FunctionExpression",
                                        "id": null,
                                        "params": [],
                                        "body": {
                                          "type": "BlockStatement",
                                          "body": [
                                            {
                                              "type": "ReturnStatement",
                                              "argument": {
                                                "type": "FunctionExpression",
                                                "id": null,
                                                "params": [],
                                                "body": {
                                                  "type": "BlockStatement",
                                                  "body": [
                                                    {
                                                      "type": "ThrowStatement",
                                                      "argument": {
                                                        "type": "Identifier",
                                                        "name": "err1",
                                                        "range": [
                                                          583,
                                                          587
                                                        ],
                                                        "loc": {
                                                          "start": {
                                                            "line": 10,
                                                            "column": 81
                                                          },
                                                          "end": {
                                                            "line": 10,
                                                            "column": 85
                                                          }
                                                        }
                                                      },
                                                      "range": [
                                                        577,
                                                        588
                                                      ],
                                                      "loc": {
                                                        "start": {
                                                          "line": 10,
                                                          "column": 75
                                                        },
                                                        "end": {
                                                          "line": 10,
                                                          "column": 86
                                                        }
                                                      }
                                                    }
                                                  ],
                                                  "range": [
                                                    575,
                                                    590
                                                  ],
                                                  "loc": {
                                                    "start": {
                                                      "line": 10,
                                                      "column": 73
                                                    },
                                                    "end": {
                                                      "line": 10,
                                                      "column": 88
                                                    }
                                                  }
                                                },
                                                "generator": false,
                                                "expression": false,
                                                "range": [
                                                  563,
                                                  590
                                                ],
                                                "loc": {
                                                  "start": {
                                                    "line": 10,
                                                    "column": 61
                                                  },
                                                  "end": {
                                                    "line": 10,
                                                    "column": 88
                                                  }
                                                }
                                              },
                                              "range": [
                                                556,
                                                591
                                              ],
                                              "loc": {
                                                "start": {
                                                  "line": 10,
                                                  "column": 54
                                                },
                                                "end": {
                                                  "line": 10,
                                                  "column": 89
                                                }
                                              }
                                            }
                                          ],
                                          "range": [
                                            554,
                                            593
                                          ],
                                          "loc": {
                                            "start": {
                                              "line": 10,
                                              "column": 52
                                            },
                                            "end": {
                                              "line": 10,
                                              "column": 91
                                            }
                                          }
                                        },
                                        "generator": false,
                                        "expression": false,
                                        "range": [
                                          542,
                                          593
                                        ],
                                        "loc": {
                                          "start": {
                                            "line": 10,
                                            "column": 40
                                          },
                                          "end": {
                                            "line": 10,
                                            "column": 91
                                          }
                                        }
                                      }
                                    ],
                                    "range": [
                                      524,
                                      594
                                    ],
                                    "loc": {
                                      "start": {
                                        "line": 10,
                                        "column": 22
                                      },
                                      "end": {
                                        "line": 10,
                                        "column": 92
                                      }
                                    }
                                  },
                                  "range": [
                                    514,
                                    594
                                  ],
                                  "loc": {
                                    "start": {
                                      "line": 10,
                                      "column": 12
                                    },
                                    "end": {
                                      "line": 10,
                                      "column": 92
                                    }
                                  }
                                }
                              ],
                              "kind": "var",
                              "range": [
                                510,
                                595
                              ],
                              "loc": {
                                "start": {
                                  "line": 10,
                                  "column": 8
                                },
                                "end": {
                                  "line": 10,
                                  "column": 93
                                }
                              }
                            },
                            {
                              "type": "VariableDeclaration",
                              "declarations": [
                                {
                                  "type": "VariableDeclarator",
                                  "id": {
                                    "type": "Identifier",
                                    "name": "source2",
                                    "range": [
                                      608,
                                      615
                                    ],
                                    "loc": {
                                      "start": {
                                        "line": 11,
                                        "column": 12
                                      },
                                      "end": {
                                        "line": 11,
                                        "column": 19
                                      }
                                    }
                                  },
                                  "init": {
                                    "type": "CallExpression",
                                    "callee": {
                                      "type": "MemberExpression",
                                      "computed": false,
                                      "object": {
                                        "type": "Identifier",
                                        "name": "Observable",
                                        "range": [
                                          618,
                                          628
                                        ],
                                        "loc": {
                                          "start": {
                                            "line": 11,
                                            "column": 22
                                          },
                                          "end": {
                                            "line": 11,
                                            "column": 32
                                          }
                                        }
                                      },
                                      "property": {
                                        "type": "Identifier",
                                        "name": "timer",
                                        "range": [
                                          629,
                                          634
                                        ],
                                        "loc": {
                                          "start": {
                                            "line": 11,
                                            "column": 33
                                          },
                                          "end": {
                                            "line": 11,
                                            "column": 38
                                          }
                                        }
                                      },
                                      "range": [
                                        618,
                                        634
                                      ],
                                      "loc": {
                                        "start": {
                                          "line": 11,
                                          "column": 22
                                        },
                                        "end": {
                                          "line": 11,
                                          "column": 38
                                        }
                                      }
                                    },
                                    "arguments": [
                                      {
                                        "type": "Literal",
                                        "value": 1000,
                                        "raw": "1000",
                                        "range": [
                                          635,
                                          639
                                        ],
                                        "loc": {
                                          "start": {
                                            "line": 11,
                                            "column": 39
                                          },
                                          "end": {
                                            "line": 11,
                                            "column": 43
                                          }
                                        }
                                      }
                                    ],
                                    "range": [
                                      618,
                                      640
                                    ],
                                    "loc": {
                                      "start": {
                                        "line": 11,
                                        "column": 22
                                      },
                                      "end": {
                                        "line": 11,
                                        "column": 44
                                      }
                                    }
                                  },
                                  "range": [
                                    608,
                                    640
                                  ],
                                  "loc": {
                                    "start": {
                                      "line": 11,
                                      "column": 12
                                    },
                                    "end": {
                                      "line": 11,
                                      "column": 44
                                    }
                                  }
                                }
                              ],
                              "kind": "var",
                              "range": [
                                604,
                                641
                              ],
                              "loc": {
                                "start": {
                                  "line": 11,
                                  "column": 8
                                },
                                "end": {
                                  "line": 11,
                                  "column": 45
                                }
                              }
                            },
                            {
                              "type": "VariableDeclaration",
                              "declarations": [
                                {
                                  "type": "VariableDeclarator",
                                  "id": {
                                    "type": "Identifier",
                                    "name": "source3",
                                    "range": [
                                      654,
                                      661
                                    ],
                                    "loc": {
                                      "start": {
                                        "line": 12,
                                        "column": 12
                                      },
                                      "end": {
                                        "line": 12,
                                        "column": 19
                                      }
                                    }
                                  },
                                  "init": {
                                    "type": "CallExpression",
                                    "callee": {
                                      "type": "MemberExpression",
                                      "computed": false,
                                      "object": {
                                        "type": "Identifier",
                                        "name": "Observable",
                                        "range": [
                                          664,
                                          674
                                        ],
                                        "loc": {
                                          "start": {
                                            "line": 12,
                                            "column": 22
                                          },
                                          "end": {
                                            "line": 12,
                                            "column": 32
                                          }
                                        }
                                      },
                                      "property": {
                                        "type": "Identifier",
                                        "name": "create",
                                        "range": [
                                          675,
                                          681
                                        ],
                                        "loc": {
                                          "start": {
                                            "line": 12,
                                            "column": 33
                                          },
                                          "end": {
                                            "line": 12,
                                            "column": 39
                                          }
                                        }
                                      },
                                      "range": [
                                        664,
                                        681
                                      ],
                                      "loc": {
                                        "start": {
                                          "line": 12,
                                          "column": 22
                                        },
                                        "end": {
                                          "line": 12,
                                          "column": 39
                                        }
                                      }
                                    },
                                    "arguments": [
                                      {
                                        "type": "FunctionExpression",
                                        "id": null,
                                        "params": [],
                                        "body": {
                                          "type": "BlockStatement",
                                          "body": [
                                            {
                                              "type": "ReturnStatement",
                                              "argument": {
                                                "type": "FunctionExpression",
                                                "id": null,
                                                "params": [],
                                                "body": {
                                                  "type": "BlockStatement",
                                                  "body": [
                                                    {
                                                      "type": "ThrowStatement",
                                                      "argument": {
                                                        "type": "Identifier",
                                                        "name": "err2",
                                                        "range": [
                                                          723,
                                                          727
                                                        ],
                                                        "loc": {
                                                          "start": {
                                                            "line": 12,
                                                            "column": 81
                                                          },
                                                          "end": {
                                                            "line": 12,
                                                            "column": 85
                                                          }
                                                        }
                                                      },
                                                      "range": [
                                                        717,
                                                        728
                                                      ],
                                                      "loc": {
                                                        "start": {
                                                          "line": 12,
                                                          "column": 75
                                                        },
                                                        "end": {
                                                          "line": 12,
                                                          "column": 86
                                                        }
                                                      }
                                                    }
                                                  ],
                                                  "range": [
                                                    715,
                                                    730
                                                  ],
                                                  "loc": {
                                                    "start": {
                                                      "line": 12,
                                                      "column": 73
                                                    },
                                                    "end": {
                                                      "line": 12,
                                                      "column": 88
                                                    }
                                                  }
                                                },
                                                "generator": false,
                                                "expression": false,
                                                "range": [
                                                  703,
                                                  730
                                                ],
                                                "loc": {
                                                  "start": {
                                                    "line": 12,
                                                    "column": 61
                                                  },
                                                  "end": {
                                                    "line": 12,
                                                    "column": 88
                                                  }
                                                }
                                              },
                                              "range": [
                                                696,
                                                731
                                              ],
                                              "loc": {
                                                "start": {
                                                  "line": 12,
                                                  "column": 54
                                                },
                                                "end": {
                                                  "line": 12,
                                                  "column": 89
                                                }
                                              }
                                            }
                                          ],
                                          "range": [
                                            694,
                                            733
                                          ],
                                          "loc": {
                                            "start": {
                                              "line": 12,
                                              "column": 52
                                            },
                                            "end": {
                                              "line": 12,
                                              "column": 91
                                            }
                                          }
                                        },
                                        "generator": false,
                                        "expression": false,
                                        "range": [
                                          682,
                                          733
                                        ],
                                        "loc": {
                                          "start": {
                                            "line": 12,
                                            "column": 40
                                          },
                                          "end": {
                                            "line": 12,
                                            "column": 91
                                          }
                                        }
                                      }
                                    ],
                                    "range": [
                                      664,
                                      734
                                    ],
                                    "loc": {
                                      "start": {
                                        "line": 12,
                                        "column": 22
                                      },
                                      "end": {
                                        "line": 12,
                                        "column": 92
                                      }
                                    }
                                  },
                                  "range": [
                                    654,
                                    734
                                  ],
                                  "loc": {
                                    "start": {
                                      "line": 12,
                                      "column": 12
                                    },
                                    "end": {
                                      "line": 12,
                                      "column": 92
                                    }
                                  }
                                }
                              ],
                              "kind": "var",
                              "range": [
                                650,
                                735
                              ],
                              "loc": {
                                "start": {
                                  "line": 12,
                                  "column": 8
                                },
                                "end": {
                                  "line": 12,
                                  "column": 93
                                }
                              }
                            },
                            {
                              "type": "VariableDeclaration",
                              "declarations": [
                                {
                                  "type": "VariableDeclarator",
                                  "id": {
                                    "type": "Identifier",
                                    "name": "source",
                                    "range": [
                                      748,
                                      754
                                    ],
                                    "loc": {
                                      "start": {
                                        "line": 13,
                                        "column": 12
                                      },
                                      "end": {
                                        "line": 13,
                                        "column": 18
                                      }
                                    }
                                  },
                                  "init": {
                                    "type": "CallExpression",
                                    "callee": {
                                      "type": "MemberExpression",
                                      "computed": false,
                                      "object": {
                                        "type": "Identifier",
                                        "name": "source1",
                                        "range": [
                                          757,
                                          764
                                        ],
                                        "loc": {
                                          "start": {
                                            "line": 13,
                                            "column": 21
                                          },
                                          "end": {
                                            "line": 13,
                                            "column": 28
                                          }
                                        }
                                      },
                                      "property": {
                                        "type": "Identifier",
                                        "name": "merge",
                                        "range": [
                                          765,
                                          770
                                        ],
                                        "loc": {
                                          "start": {
                                            "line": 13,
                                            "column": 29
                                          },
                                          "end": {
                                            "line": 13,
                                            "column": 34
                                          }
                                        }
                                      },
                                      "range": [
                                        757,
                                        770
                                      ],
                                      "loc": {
                                        "start": {
                                          "line": 13,
                                          "column": 21
                                        },
                                        "end": {
                                          "line": 13,
                                          "column": 34
                                        }
                                      }
                                    },
                                    "arguments": [
                                      {
                                        "type": "Identifier",
                                        "name": "source2",
                                        "range": [
                                          771,
                                          778
                                        ],
                                        "loc": {
                                          "start": {
                                            "line": 13,
                                            "column": 35
                                          },
                                          "end": {
                                            "line": 13,
                                            "column": 42
                                          }
                                        }
                                      },
                                      {
                                        "type": "Identifier",
                                        "name": "source3",
                                        "range": [
                                          780,
                                          787
                                        ],
                                        "loc": {
                                          "start": {
                                            "line": 13,
                                            "column": 44
                                          },
                                          "end": {
                                            "line": 13,
                                            "column": 51
                                          }
                                        }
                                      }
                                    ],
                                    "range": [
                                      757,
                                      788
                                    ],
                                    "loc": {
                                      "start": {
                                        "line": 13,
                                        "column": 21
                                      },
                                      "end": {
                                        "line": 13,
                                        "column": 52
                                      }
                                    }
                                  },
                                  "range": [
                                    748,
                                    788
                                  ],
                                  "loc": {
                                    "start": {
                                      "line": 13,
                                      "column": 12
                                    },
                                    "end": {
                                      "line": 13,
                                      "column": 52
                                    }
                                  }
                                }
                              ],
                              "kind": "var",
                              "range": [
                                744,
                                789
                              ],
                              "loc": {
                                "start": {
                                  "line": 13,
                                  "column": 8
                                },
                                "end": {
                                  "line": 13,
                                  "column": 53
                                }
                              }
                            },
                            {
                              "type": "VariableDeclaration",
                              "declarations": [
                                {
                                  "type": "VariableDeclarator",
                                  "id": {
                                    "type": "Identifier",
                                    "name": "subscription",
                                    "range": [
                                      802,
                                      814
                                    ],
                                    "loc": {
                                      "start": {
                                        "line": 14,
                                        "column": 12
                                      },
                                      "end": {
                                        "line": 14,
                                        "column": 24
                                      }
                                    }
                                  },
                                  "init": {
                                    "type": "CallExpression",
                                    "callee": {
                                      "type": "MemberExpression",
                                      "computed": false,
                                      "object": {
                                        "type": "Identifier",
                                        "name": "source",
                                        "range": [
                                          817,
                                          823
                                        ],
                                        "loc": {
                                          "start": {
                                            "line": 14,
                                            "column": 27
                                          },
                                          "end": {
                                            "line": 14,
                                            "column": 33
                                          }
                                        }
                                      },
                                      "property": {
                                        "type": "Identifier",
                                        "name": "subscribe",
                                        "range": [
                                          824,
                                          833
                                        ],
                                        "loc": {
                                          "start": {
                                            "line": 14,
                                            "column": 34
                                          },
                                          "end": {
                                            "line": 14,
                                            "column": 43
                                          }
                                        }
                                      },
                                      "range": [
                                        817,
                                        833
                                      ],
                                      "loc": {
                                        "start": {
                                          "line": 14,
                                          "column": 27
                                        },
                                        "end": {
                                          "line": 14,
                                          "column": 43
                                        }
                                      }
                                    },
                                    "arguments": [],
                                    "range": [
                                      817,
                                      835
                                    ],
                                    "loc": {
                                      "start": {
                                        "line": 14,
                                        "column": 27
                                      },
                                      "end": {
                                        "line": 14,
                                        "column": 45
                                      }
                                    }
                                  },
                                  "range": [
                                    802,
                                    835
                                  ],
                                  "loc": {
                                    "start": {
                                      "line": 14,
                                      "column": 12
                                    },
                                    "end": {
                                      "line": 14,
                                      "column": 45
                                    }
                                  }
                                }
                              ],
                              "kind": "var",
                              "range": [
                                798,
                                836
                              ],
                              "loc": {
                                "start": {
                                  "line": 14,
                                  "column": 8
                                },
                                "end": {
                                  "line": 14,
                                  "column": 46
                                }
                              }
                            },
                            {
                              "type": "TryStatement",
                              "block": {
                                "type": "BlockStatement",
                                "body": [
                                  {
                                    "type": "ExpressionStatement",
                                    "expression": {
                                      "type": "CallExpression",
                                      "callee": {
                                        "type": "MemberExpression",
                                        "computed": false,
                                        "object": {
                                          "type": "Identifier",
                                          "name": "subscription",
                                          "range": [
                                            863,
                                            875
                                          ],
                                          "loc": {
                                            "start": {
                                              "line": 16,
                                              "column": 12
                                            },
                                            "end": {
                                              "line": 16,
                                              "column": 24
                                            }
                                          }
                                        },
                                        "property": {
                                          "type": "Identifier",
                                          "name": "unsubscribe",
                                          "range": [
                                            876,
                                            887
                                          ],
                                          "loc": {
                                            "start": {
                                              "line": 16,
                                              "column": 25
                                            },
                                            "end": {
                                              "line": 16,
                                              "column": 36
                                            }
                                          }
                                        },
                                        "range": [
                                          863,
                                          887
                                        ],
                                        "loc": {
                                          "start": {
                                            "line": 16,
                                            "column": 12
                                          },
                                          "end": {
                                            "line": 16,
                                            "column": 36
                                          }
                                        }
                                      },
                                      "arguments": [],
                                      "range": [
                                        863,
                                        889
                                      ],
                                      "loc": {
                                        "start": {
                                          "line": 16,
                                          "column": 12
                                        },
                                        "end": {
                                          "line": 16,
                                          "column": 38
                                        }
                                      }
                                    },
                                    "range": [
                                      863,
                                      890
                                    ],
                                    "loc": {
                                      "start": {
                                        "line": 16,
                                        "column": 12
                                      },
                                      "end": {
                                        "line": 16,
                                        "column": 39
                                      }
                                    }
                                  }
                                ],
                                "range": [
                                  849,
                                  900
                                ],
                                "loc": {
                                  "start": {
                                    "line": 15,
                                    "column": 12
                                  },
                                  "end": {
                                    "line": 17,
                                    "column": 9
                                  }
                                }
                              },
                              "handler": {
                                "type": "CatchClause",
                                "param": {
                                  "type": "Identifier",
                                  "name": "err",
                                  "range": [
                                    916,
                                    919
                                  ],
                                  "loc": {
                                    "start": {
                                      "line": 18,
                                      "column": 15
                                    },
                                    "end": {
                                      "line": 18,
                                      "column": 18
                                    }
                                  }
                                },
                                "body": {
                                  "type": "BlockStatement",
                                  "body": [
                                    {
                                      "type": "ExpressionStatement",
                                      "expression": {
                                        "type": "CallExpression",
                                        "callee": {
                                          "type": "MemberExpression",
                                          "computed": false,
                                          "object": {
                                            "type": "MemberExpression",
                                            "computed": false,
                                            "object": {
                                              "type": "CallExpression",
                                              "callee": {
                                                "type": "MemberExpression",
                                                "computed": false,
                                                "object": {
                                                  "type": "Identifier",
                                                  "name": "chai_1",
                                                  "range": [
                                                    935,
                                                    941
                                                  ],
                                                  "loc": {
                                                    "start": {
                                                      "line": 19,
                                                      "column": 12
                                                    },
                                                    "end": {
                                                      "line": 19,
                                                      "column": 18
                                                    }
                                                  }
                                                },
                                                "property": {
                                                  "type": "Identifier",
                                                  "name": "expect",
                                                  "range": [
                                                    942,
                                                    948
                                                  ],
                                                  "loc": {
                                                    "start": {
                                                      "line": 19,
                                                      "column": 19
                                                    },
                                                    "end": {
                                                      "line": 19,
                                                      "column": 25
                                                    }
                                                  }
                                                },
                                                "range": [
                                                  935,
                                                  948
                                                ],
                                                "loc": {
                                                  "start": {
                                                    "line": 19,
                                                    "column": 12
                                                  },
                                                  "end": {
                                                    "line": 19,
                                                    "column": 25
                                                  }
                                                }
                                              },
                                              "arguments": [
                                                {
                                                  "type": "BinaryExpression",
                                                  "operator": "instanceof",
                                                  "left": {
                                                    "type": "Identifier",
                                                    "name": "err",
                                                    "range": [
                                                      949,
                                                      952
                                                    ],
                                                    "loc": {
                                                      "start": {
                                                        "line": 19,
                                                        "column": 26
                                                      },
                                                      "end": {
                                                        "line": 19,
                                                        "column": 29
                                                      }
                                                    }
                                                  },
                                                  "right": {
                                                    "type": "Identifier",
                                                    "name": "UnsubscriptionError",
                                                    "range": [
                                                      964,
                                                      983
                                                    ],
                                                    "loc": {
                                                      "start": {
                                                        "line": 19,
                                                        "column": 41
                                                      },
                                                      "end": {
                                                        "line": 19,
                                                        "column": 60
                                                      }
                                                    }
                                                  },
                                                  "range": [
                                                    949,
                                                    983
                                                  ],
                                                  "loc": {
                                                    "start": {
                                                      "line": 19,
                                                      "column": 26
                                                    },
                                                    "end": {
                                                      "line": 19,
                                                      "column": 60
                                                    }
                                                  }
                                                }
                                              ],
                                              "range": [
                                                935,
                                                984
                                              ],
                                              "loc": {
                                                "start": {
                                                  "line": 19,
                                                  "column": 12
                                                },
                                                "end": {
                                                  "line": 19,
                                                  "column": 61
                                                }
                                              }
                                            },
                                            "property": {
                                              "type": "Identifier",
                                              "name": "to",
                                              "range": [
                                                985,
                                                987
                                              ],
                                              "loc": {
                                                "start": {
                                                  "line": 19,
                                                  "column": 62
                                                },
                                                "end": {
                                                  "line": 19,
                                                  "column": 64
                                                }
                                              }
                                            },
                                            "range": [
                                              935,
                                              987
                                            ],
                                            "loc": {
                                              "start": {
                                                "line": 19,
                                                "column": 12
                                              },
                                              "end": {
                                                "line": 19,
                                                "column": 64
                                              }
                                            }
                                          },
                                          "property": {
                                            "type": "Identifier",
                                            "name": "equal",
                                            "range": [
                                              988,
                                              993
                                            ],
                                            "loc": {
                                              "start": {
                                                "line": 19,
                                                "column": 65
                                              },
                                              "end": {
                                                "line": 19,
                                                "column": 70
                                              }
                                            }
                                          },
                                          "range": [
                                            935,
                                            993
                                          ],
                                          "loc": {
                                            "start": {
                                              "line": 19,
                                              "column": 12
                                            },
                                            "end": {
                                              "line": 19,
                                              "column": 70
                                            }
                                          }
                                        },
                                        "arguments": [
                                          {
                                            "type": "Literal",
                                            "value": true,
                                            "raw": "true",
                                            "range": [
                                              994,
                                              998
                                            ],
                                            "loc": {
                                              "start": {
                                                "line": 19,
                                                "column": 71
                                              },
                                              "end": {
                                                "line": 19,
                                                "column": 75
                                              }
                                            }
                                          }
                                        ],
                                        "range": [
                                          935,
                                          999
                                        ],
                                        "loc": {
                                          "start": {
                                            "line": 19,
                                            "column": 12
                                          },
                                          "end": {
                                            "line": 19,
                                            "column": 76
                                          }
                                        }
                                      },
                                      "range": [
                                        935,
                                        1000
                                      ],
                                      "loc": {
                                        "start": {
                                          "line": 19,
                                          "column": 12
                                        },
                                        "end": {
                                          "line": 19,
                                          "column": 77
                                        }
                                      }
                                    },
                                    {
                                      "type": "ExpressionStatement",
                                      "expression": {
                                        "type": "CallExpression",
                                        "callee": {
                                          "type": "MemberExpression",
                                          "computed": false,
                                          "object": {
                                            "type": "MemberExpression",
                                            "computed": false,
                                            "object": {
                                              "type": "CallExpression",
                                              "callee": {
                                                "type": "MemberExpression",
                                                "computed": false,
                                                "object": {
                                                  "type": "Identifier",
                                                  "name": "chai_1",
                                                  "range": [
                                                    1013,
                                                    1019
                                                  ],
                                                  "loc": {
                                                    "start": {
                                                      "line": 20,
                                                      "column": 12
                                                    },
                                                    "end": {
                                                      "line": 20,
                                                      "column": 18
                                                    }
                                                  }
                                                },
                                                "property": {
                                                  "type": "Identifier",
                                                  "name": "expect",
                                                  "range": [
                                                    1020,
                                                    1026
                                                  ],
                                                  "loc": {
                                                    "start": {
                                                      "line": 20,
                                                      "column": 19
                                                    },
                                                    "end": {
                                                      "line": 20,
                                                      "column": 25
                                                    }
                                                  }
                                                },
                                                "range": [
                                                  1013,
                                                  1026
                                                ],
                                                "loc": {
                                                  "start": {
                                                    "line": 20,
                                                    "column": 12
                                                  },
                                                  "end": {
                                                    "line": 20,
                                                    "column": 25
                                                  }
                                                }
                                              },
                                              "arguments": [
                                                {
                                                  "type": "MemberExpression",
                                                  "computed": false,
                                                  "object": {
                                                    "type": "Identifier",
                                                    "name": "err",
                                                    "range": [
                                                      1027,
                                                      1030
                                                    ],
                                                    "loc": {
                                                      "start": {
                                                        "line": 20,
                                                        "column": 26
                                                      },
                                                      "end": {
                                                        "line": 20,
                                                        "column": 29
                                                      }
                                                    }
                                                  },
                                                  "property": {
                                                    "type": "Identifier",
                                                    "name": "message",
                                                    "range": [
                                                      1031,
                                                      1038
                                                    ],
                                                    "loc": {
                                                      "start": {
                                                        "line": 20,
                                                        "column": 30
                                                      },
                                                      "end": {
                                                        "line": 20,
                                                        "column": 37
                                                      }
                                                    }
                                                  },
                                                  "range": [
                                                    1027,
                                                    1038
                                                  ],
                                                  "loc": {
                                                    "start": {
                                                      "line": 20,
                                                      "column": 26
                                                    },
                                                    "end": {
                                                      "line": 20,
                                                      "column": 37
                                                    }
                                                  }
                                                }
                                              ],
                                              "range": [
                                                1013,
                                                1039
                                              ],
                                              "loc": {
                                                "start": {
                                                  "line": 20,
                                                  "column": 12
                                                },
                                                "end": {
                                                  "line": 20,
                                                  "column": 38
                                                }
                                              }
                                            },
                                            "property": {
                                              "type": "Identifier",
                                              "name": "to",
                                              "range": [
                                                1040,
                                                1042
                                              ],
                                              "loc": {
                                                "start": {
                                                  "line": 20,
                                                  "column": 39
                                                },
                                                "end": {
                                                  "line": 20,
                                                  "column": 41
                                                }
                                              }
                                            },
                                            "range": [
                                              1013,
                                              1042
                                            ],
                                            "loc": {
                                              "start": {
                                                "line": 20,
                                                "column": 12
                                              },
                                              "end": {
                                                "line": 20,
                                                "column": 41
                                              }
                                            }
                                          },
                                          "property": {
                                            "type": "Identifier",
                                            "name": "equal",
                                            "range": [
                                              1043,
                                              1048
                                            ],
                                            "loc": {
                                              "start": {
                                                "line": 20,
                                                "column": 42
                                              },
                                              "end": {
                                                "line": 20,
                                                "column": 47
                                              }
                                            }
                                          },
                                          "range": [
                                            1013,
                                            1048
                                          ],
                                          "loc": {
                                            "start": {
                                              "line": 20,
                                              "column": 12
                                            },
                                            "end": {
                                              "line": 20,
                                              "column": 47
                                            }
                                          }
                                        },
                                        "arguments": [
                                          {
                                            "type": "BinaryExpression",
                                            "operator": "+",
                                            "left": {
                                              "type": "BinaryExpression",
                                              "operator": "+",
                                              "left": {
                                                "type": "BinaryExpression",
                                                "operator": "+",
                                                "left": {
                                                  "type": "Literal",
                                                  "value": "2 errors occurred during unsubscription:\n  1) ",
                                                  "raw": "\"2 errors occurred during unsubscription:\\n  1) \"",
                                                  "range": [
                                                    1049,
                                                    1098
                                                  ],
                                                  "loc": {
                                                    "start": {
                                                      "line": 20,
                                                      "column": 48
                                                    },
                                                    "end": {
                                                      "line": 20,
                                                      "column": 97
                                                    }
                                                  }
                                                },
                                                "right": {
                                                  "type": "Identifier",
                                                  "name": "err1",
                                                  "range": [
                                                    1101,
                                                    1105
                                                  ],
                                                  "loc": {
                                                    "start": {
                                                      "line": 20,
                                                      "column": 100
                                                    },
                                                    "end": {
                                                      "line": 20,
                                                      "column": 104
                                                    }
                                                  }
                                                },
                                                "range": [
                                                  1049,
                                                  1105
                                                ],
                                                "loc": {
                                                  "start": {
                                                    "line": 20,
                                                    "column": 48
                                                  },
                                                  "end": {
                                                    "line": 20,
                                                    "column": 104
                                                  }
                                                }
                                              },
                                              "right": {
                                                "type": "Literal",
                                                "value": "\n  2) ",
                                                "raw": "\"\\n  2) \"",
                                                "range": [
                                                  1108,
                                                  1117
                                                ],
                                                "loc": {
                                                  "start": {
                                                    "line": 20,
                                                    "column": 107
                                                  },
                                                  "end": {
                                                    "line": 20,
                                                    "column": 116
                                                  }
                                                }
                                              },
                                              "range": [
                                                1049,
                                                1117
                                              ],
                                              "loc": {
                                                "start": {
                                                  "line": 20,
                                                  "column": 48
                                                },
                                                "end": {
                                                  "line": 20,
                                                  "column": 116
                                                }
                                              }
                                            },
                                            "right": {
                                              "type": "Identifier",
                                              "name": "err2",
                                              "range": [
                                                1120,
                                                1124
                                              ],
                                              "loc": {
                                                "start": {
                                                  "line": 20,
                                                  "column": 119
                                                },
                                                "end": {
                                                  "line": 20,
                                                  "column": 123
                                                }
                                              }
                                            },
                                            "range": [
                                              1049,
                                              1124
                                            ],
                                            "loc": {
                                              "start": {
                                                "line": 20,
                                                "column": 48
                                              },
                                              "end": {
                                                "line": 20,
                                                "column": 123
                                              }
                                            }
                                          }
                                        ],
                                        "range": [
                                          1013,
                                          1125
                                        ],
                                        "loc": {
                                          "start": {
                                            "line": 20,
                                            "column": 12
                                          },
                                          "end": {
                                            "line": 20,
                                            "column": 124
                                          }
                                        }
                                      },
                                      "range": [
                                        1013,
                                        1126
                                      ],
                                      "loc": {
                                        "start": {
                                          "line": 20,
                                          "column": 12
                                        },
                                        "end": {
                                          "line": 20,
                                          "column": 125
                                        }
                                      }
                                    },
                                    {
                                      "type": "ExpressionStatement",
                                      "expression": {
                                        "type": "CallExpression",
                                        "callee": {
                                          "type": "MemberExpression",
                                          "computed": false,
                                          "object": {
                                            "type": "MemberExpression",
                                            "computed": false,
                                            "object": {
                                              "type": "CallExpression",
                                              "callee": {
                                                "type": "MemberExpression",
                                                "computed": false,
                                                "object": {
                                                  "type": "Identifier",
                                                  "name": "chai_1",
                                                  "range": [
                                                    1139,
                                                    1145
                                                  ],
                                                  "loc": {
                                                    "start": {
                                                      "line": 21,
                                                      "column": 12
                                                    },
                                                    "end": {
                                                      "line": 21,
                                                      "column": 18
                                                    }
                                                  }
                                                },
                                                "property": {
                                                  "type": "Identifier",
                                                  "name": "expect",
                                                  "range": [
                                                    1146,
                                                    1152
                                                  ],
                                                  "loc": {
                                                    "start": {
                                                      "line": 21,
                                                      "column": 19
                                                    },
                                                    "end": {
                                                      "line": 21,
                                                      "column": 25
                                                    }
                                                  }
                                                },
                                                "range": [
                                                  1139,
                                                  1152
                                                ],
                                                "loc": {
                                                  "start": {
                                                    "line": 21,
                                                    "column": 12
                                                  },
                                                  "end": {
                                                    "line": 21,
                                                    "column": 25
                                                  }
                                                }
                                              },
                                              "arguments": [
                                                {
                                                  "type": "MemberExpression",
                                                  "computed": false,
                                                  "object": {
                                                    "type": "Identifier",
                                                    "name": "err",
                                                    "range": [
                                                      1153,
                                                      1156
                                                    ],
                                                    "loc": {
                                                      "start": {
                                                        "line": 21,
                                                        "column": 26
                                                      },
                                                      "end": {
                                                        "line": 21,
                                                        "column": 29
                                                      }
                                                    }
                                                  },
                                                  "property": {
                                                    "type": "Identifier",
                                                    "name": "name",
                                                    "range": [
                                                      1157,
                                                      1161
                                                    ],
                                                    "loc": {
                                                      "start": {
                                                        "line": 21,
                                                        "column": 30
                                                      },
                                                      "end": {
                                                        "line": 21,
                                                        "column": 34
                                                      }
                                                    }
                                                  },
                                                  "range": [
                                                    1153,
                                                    1161
                                                  ],
                                                  "loc": {
                                                    "start": {
                                                      "line": 21,
                                                      "column": 26
                                                    },
                                                    "end": {
                                                      "line": 21,
                                                      "column": 34
                                                    }
                                                  }
                                                }
                                              ],
                                              "range": [
                                                1139,
                                                1162
                                              ],
                                              "loc": {
                                                "start": {
                                                  "line": 21,
                                                  "column": 12
                                                },
                                                "end": {
                                                  "line": 21,
                                                  "column": 35
                                                }
                                              }
                                            },
                                            "property": {
                                              "type": "Identifier",
                                              "name": "to",
                                              "range": [
                                                1163,
                                                1165
                                              ],
                                              "loc": {
                                                "start": {
                                                  "line": 21,
                                                  "column": 36
                                                },
                                                "end": {
                                                  "line": 21,
                                                  "column": 38
                                                }
                                              }
                                            },
                                            "range": [
                                              1139,
                                              1165
                                            ],
                                            "loc": {
                                              "start": {
                                                "line": 21,
                                                "column": 12
                                              },
                                              "end": {
                                                "line": 21,
                                                "column": 38
                                              }
                                            }
                                          },
                                          "property": {
                                            "type": "Identifier",
                                            "name": "equal",
                                            "range": [
                                              1166,
                                              1171
                                            ],
                                            "loc": {
                                              "start": {
                                                "line": 21,
                                                "column": 39
                                              },
                                              "end": {
                                                "line": 21,
                                                "column": 44
                                              }
                                            }
                                          },
                                          "range": [
                                            1139,
                                            1171
                                          ],
                                          "loc": {
                                            "start": {
                                              "line": 21,
                                              "column": 12
                                            },
                                            "end": {
                                              "line": 21,
                                              "column": 44
                                            }
                                          }
                                        },
                                        "arguments": [
                                          {
                                            "type": "Literal",
                                            "value": "UnsubscriptionError",
                                            "raw": "'UnsubscriptionError'",
                                            "range": [
                                              1172,
                                              1193
                                            ],
                                            "loc": {
                                              "start": {
                                                "line": 21,
                                                "column": 45
                                              },
                                              "end": {
                                                "line": 21,
                                                "column": 66
                                              }
                                            }
                                          }
                                        ],
                                        "range": [
                                          1139,
                                          1194
                                        ],
                                        "loc": {
                                          "start": {
                                            "line": 21,
                                            "column": 12
                                          },
                                          "end": {
                                            "line": 21,
                                            "column": 67
                                          }
                                        }
                                      },
                                      "range": [
                                        1139,
                                        1195
                                      ],
                                      "loc": {
                                        "start": {
                                          "line": 21,
                                          "column": 12
                                        },
                                        "end": {
                                          "line": 21,
                                          "column": 68
                                        }
                                      }
                                    }
                                  ],
                                  "range": [
                                    921,
                                    1205
                                  ],
                                  "loc": {
                                    "start": {
                                      "line": 18,
                                      "column": 20
                                    },
                                    "end": {
                                      "line": 22,
                                      "column": 9
                                    }
                                  }
                                },
                                "range": [
                                  909,
                                  1205
                                ],
                                "loc": {
                                  "start": {
                                    "line": 18,
                                    "column": 8
                                  },
                                  "end": {
                                    "line": 22,
                                    "column": 9
                                  }
                                }
                              },
                              "finalizer": null,
                              "range": [
                                845,
                                1205
                              ],
                              "loc": {
                                "start": {
                                  "line": 15,
                                  "column": 8
                                },
                                "end": {
                                  "line": 22,
                                  "column": 9
                                }
                              }
                            }
                          ],
                          "range": [
                            338,
                            1211
                          ],
                          "loc": {
                            "start": {
                              "line": 7,
                              "column": 96
                            },
                            "end": {
                              "line": 23,
                              "column": 5
                            }
                          }
                        },
                        "generator": false,
                        "expression": false,
                        "range": [
                          326,
                          1211
                        ],
                        "loc": {
                          "start": {
                            "line": 7,
                            "column": 84
                          },
                          "end": {
                            "line": 23,
                            "column": 5
                          }
                        }
                      }
                    ],
                    "range": [
                      246,
                      1212
                    ],
                    "loc": {
                      "start": {
                        "line": 7,
                        "column": 4
                      },
                      "end": {
                        "line": 23,
                        "column": 6
                      }
                    },
                    "_esdocTestId": 2571,
                    "_esdocTestName": "it2571"
                  },
                  "range": [
                    246,
                    1213
                  ],
                  "loc": {
                    "start": {
                      "line": 7,
                      "column": 4
                    },
                    "end": {
                      "line": 23,
                      "column": 7
                    }
                  }
                }
              ],
              "range": [
                240,
                1215
              ],
              "loc": {
                "start": {
                  "line": 6,
                  "column": 44
                },
                "end": {
                  "line": 24,
                  "column": 1
                }
              }
            },
            "generator": false,
            "expression": false,
            "range": [
              228,
              1215
            ],
            "loc": {
              "start": {
                "line": 6,
                "column": 32
              },
              "end": {
                "line": 24,
                "column": 1
              }
            }
          }
        ],
        "range": [
          196,
          1216
        ],
        "loc": {
          "start": {
            "line": 6,
            "column": 0
          },
          "end": {
            "line": 24,
            "column": 2
          }
        },
        "_esdocTestId": 2570,
        "_esdocTestName": "describe2570"
      },
      "range": [
        196,
        1217
      ],
      "loc": {
        "start": {
          "line": 6,
          "column": 0
        },
        "end": {
          "line": 24,
          "column": 3
        }
      },
      "leadingComments": [
        {
          "type": "Block",
          "value": "* @test {UnsubscriptionError} ",
          "range": [
            161,
            195
          ],
          "loc": {
            "start": {
              "line": 5,
              "column": 0
            },
            "end": {
              "line": 5,
              "column": 34
            }
          }
        }
      ],
      "trailingComments": [
        {
          "type": "Line",
          "value": "# sourceMappingURL=UnsubscriptionError-spec.js.map",
          "range": [
            1218,
            1270
          ],
          "loc": {
            "start": {
              "line": 25,
              "column": 0
            },
            "end": {
              "line": 25,
              "column": 52
            }
          }
        }
      ]
    }
  ],
  "sourceType": "module",
  "range": [
    0,
    1217
  ],
  "loc": {
    "start": {
      "line": 1,
      "column": 0
    },
    "end": {
      "line": 24,
      "column": 3
    }
  },
  "comments": [
    {
      "type": "Block",
      "value": "* @test {UnsubscriptionError} ",
      "range": [
        161,
        195
      ],
      "loc": {
        "start": {
          "line": 5,
          "column": 0
        },
        "end": {
          "line": 5,
          "column": 34
        }
      }
    },
    {
      "type": "Line",
      "value": "# sourceMappingURL=UnsubscriptionError-spec.js.map",
      "range": [
        1218,
        1270
      ],
      "loc": {
        "start": {
          "line": 25,
          "column": 0
        },
        "end": {
          "line": 25,
          "column": 52
        }
      }
    }
  ]
}