- type: BinaryExpression
  left:
    type: BinaryExpression
    left:
      type: Identifier
      name: x
    operator: "*"
    right:
      type: Identifier
      name: x
  operator: +
  right:
    type: BinaryExpression
    left:
      type: Identifier
      name: y
    operator: "*"
    right:
      type: Identifier
      name: y