[
  {
    "type": "identifier",
    "value": "switch"
  },
  {
    "type": "identifier",
    "value": "type"
  },
  {
    "type": "indention",
    "value": 1
  },
  {
    "type": "identifier",
    "value": "case"
  },
  {
    "type": "literal",
    "value": "'fs-str'"
  },
  {
    "type": "indention",
    "value": 2
  },
  {
    "type": "identifier",
    "value": "return"
  },
  {
    "type": "operator",
    "value": "typeof"
  },
  {
    "type": "identifier",
    "value": "value"
  },
  {
    "type": "operator",
    "value": "==="
  },
  {
    "type": "literal",
    "value": "'string'"
  },
  {
    "type": "indention",
    "value": 0
  }
]