swc/crates/swc_ecma_parser/tests/tsc/assignmentCompatWithCallSignatures2.json

{
  "type": "Script",
  "span": {
    "start": 110,
    "end": 915,
    "ctxt": 0
  },
  "body": [
    {
      "type": "TsInterfaceDeclaration",
      "span": {
        "start": 110,
        "end": 149,
        "ctxt": 0
      },
      "id": {
        "type": "Identifier",
        "span": {
          "start": 120,
          "end": 121,
          "ctxt": 0
        },
        "value": "T",
        "optional": false
      },
      "declare": false,
      "typeParams": null,
      "extends": [],
      "body": {
        "type": "TsInterfaceBody",
        "span": {
          "start": 122,
          "end": 149,
          "ctxt": 0
        },
        "body": [
          {
            "type": "TsMethodSignature",
            "span": {
              "start": 128,
              "end": 147,
              "ctxt": 0
            },
            "readonly": false,
            "key": {
              "type": "Identifier",
              "span": {
                "start": 128,
                "end": 129,
                "ctxt": 0
              },
              "value": "f",
              "optional": false
            },
            "computed": false,
            "optional": false,
            "params": [
              {
                "type": "Identifier",
                "span": {
                  "start": 130,
                  "end": 139,
                  "ctxt": 0
                },
                "value": "x",
                "optional": false,
                "typeAnnotation": {
                  "type": "TsTypeAnnotation",
                  "span": {
                    "start": 131,
                    "end": 139,
                    "ctxt": 0
                  },
                  "typeAnnotation": {
                    "type": "TsKeywordType",
                    "span": {
                      "start": 133,
                      "end": 139,
                      "ctxt": 0
                    },
                    "kind": "number"
                  }
                }
              }
            ],
            "typeAnn": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 140,
                "end": 146,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsKeywordType",
                "span": {
                  "start": 142,
                  "end": 146,
                  "ctxt": 0
                },
                "kind": "void"
              }
            },
            "typeParams": null
          }
        ]
      }
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 150,
        "end": 159,
        "ctxt": 0
      },
      "kind": "var",
      "declare": false,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 154,
            "end": 158,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 154,
              "end": 155,
              "ctxt": 0
            },
            "value": "t",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 155,
                "end": 158,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsTypeReference",
                "span": {
                  "start": 157,
                  "end": 158,
                  "ctxt": 0
                },
                "typeName": {
                  "type": "Identifier",
                  "span": {
                    "start": 157,
                    "end": 158,
                    "ctxt": 0
                  },
                  "value": "T",
                  "optional": false
                },
                "typeParams": null
              }
            }
          },
          "init": null,
          "definite": false
        }
      ]
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 160,
        "end": 190,
        "ctxt": 0
      },
      "kind": "var",
      "declare": false,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 164,
            "end": 189,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 164,
              "end": 165,
              "ctxt": 0
            },
            "value": "a",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 165,
                "end": 189,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsTypeLiteral",
                "span": {
                  "start": 167,
                  "end": 189,
                  "ctxt": 0
                },
                "members": [
                  {
                    "type": "TsMethodSignature",
                    "span": {
                      "start": 169,
                      "end": 187,
                      "ctxt": 0
                    },
                    "readonly": false,
                    "key": {
                      "type": "Identifier",
                      "span": {
                        "start": 169,
                        "end": 170,
                        "ctxt": 0
                      },
                      "value": "f",
                      "optional": false
                    },
                    "computed": false,
                    "optional": false,
                    "params": [
                      {
                        "type": "Identifier",
                        "span": {
                          "start": 171,
                          "end": 180,
                          "ctxt": 0
                        },
                        "value": "x",
                        "optional": false,
                        "typeAnnotation": {
                          "type": "TsTypeAnnotation",
                          "span": {
                            "start": 172,
                            "end": 180,
                            "ctxt": 0
                          },
                          "typeAnnotation": {
                            "type": "TsKeywordType",
                            "span": {
                              "start": 174,
                              "end": 180,
                              "ctxt": 0
                            },
                            "kind": "number"
                          }
                        }
                      }
                    ],
                    "typeAnn": {
                      "type": "TsTypeAnnotation",
                      "span": {
                        "start": 181,
                        "end": 187,
                        "ctxt": 0
                      },
                      "typeAnnotation": {
                        "type": "TsKeywordType",
                        "span": {
                          "start": 183,
                          "end": 187,
                          "ctxt": 0
                        },
                        "kind": "void"
                      }
                    },
                    "typeParams": null
                  }
                ]
              }
            }
          },
          "init": null,
          "definite": false
        }
      ]
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 192,
        "end": 198,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 192,
          "end": 197,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 192,
            "end": 193,
            "ctxt": 0
          },
          "value": "t",
          "optional": false,
          "typeAnnotation": null
        },
        "right": {
          "type": "Identifier",
          "span": {
            "start": 196,
            "end": 197,
            "ctxt": 0
          },
          "value": "a",
          "optional": false
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 199,
        "end": 205,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 199,
          "end": 204,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 199,
            "end": 200,
            "ctxt": 0
          },
          "value": "a",
          "optional": false,
          "typeAnnotation": null
        },
        "right": {
          "type": "Identifier",
          "span": {
            "start": 203,
            "end": 204,
            "ctxt": 0
          },
          "value": "t",
          "optional": false
        }
      }
    },
    {
      "type": "TsInterfaceDeclaration",
      "span": {
        "start": 207,
        "end": 248,
        "ctxt": 0
      },
      "id": {
        "type": "Identifier",
        "span": {
          "start": 217,
          "end": 218,
          "ctxt": 0
        },
        "value": "S",
        "optional": false
      },
      "declare": false,
      "typeParams": null,
      "extends": [],
      "body": {
        "type": "TsInterfaceBody",
        "span": {
          "start": 219,
          "end": 248,
          "ctxt": 0
        },
        "body": [
          {
            "type": "TsMethodSignature",
            "span": {
              "start": 225,
              "end": 246,
              "ctxt": 0
            },
            "readonly": false,
            "key": {
              "type": "Identifier",
              "span": {
                "start": 225,
                "end": 226,
                "ctxt": 0
              },
              "value": "f",
              "optional": false
            },
            "computed": false,
            "optional": false,
            "params": [
              {
                "type": "Identifier",
                "span": {
                  "start": 227,
                  "end": 236,
                  "ctxt": 0
                },
                "value": "x",
                "optional": false,
                "typeAnnotation": {
                  "type": "TsTypeAnnotation",
                  "span": {
                    "start": 228,
                    "end": 236,
                    "ctxt": 0
                  },
                  "typeAnnotation": {
                    "type": "TsKeywordType",
                    "span": {
                      "start": 230,
                      "end": 236,
                      "ctxt": 0
                    },
                    "kind": "number"
                  }
                }
              }
            ],
            "typeAnn": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 237,
                "end": 245,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsKeywordType",
                "span": {
                  "start": 239,
                  "end": 245,
                  "ctxt": 0
                },
                "kind": "string"
              }
            },
            "typeParams": null
          }
        ]
      }
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 249,
        "end": 258,
        "ctxt": 0
      },
      "kind": "var",
      "declare": false,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 253,
            "end": 257,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 253,
              "end": 254,
              "ctxt": 0
            },
            "value": "s",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 254,
                "end": 257,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsTypeReference",
                "span": {
                  "start": 256,
                  "end": 257,
                  "ctxt": 0
                },
                "typeName": {
                  "type": "Identifier",
                  "span": {
                    "start": 256,
                    "end": 257,
                    "ctxt": 0
                  },
                  "value": "S",
                  "optional": false
                },
                "typeParams": null
              }
            }
          },
          "init": null,
          "definite": false
        }
      ]
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 259,
        "end": 292,
        "ctxt": 0
      },
      "kind": "var",
      "declare": false,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 263,
            "end": 291,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 263,
              "end": 265,
              "ctxt": 0
            },
            "value": "a2",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 265,
                "end": 291,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsTypeLiteral",
                "span": {
                  "start": 267,
                  "end": 291,
                  "ctxt": 0
                },
                "members": [
                  {
                    "type": "TsMethodSignature",
                    "span": {
                      "start": 269,
                      "end": 289,
                      "ctxt": 0
                    },
                    "readonly": false,
                    "key": {
                      "type": "Identifier",
                      "span": {
                        "start": 269,
                        "end": 270,
                        "ctxt": 0
                      },
                      "value": "f",
                      "optional": false
                    },
                    "computed": false,
                    "optional": false,
                    "params": [
                      {
                        "type": "Identifier",
                        "span": {
                          "start": 271,
                          "end": 280,
                          "ctxt": 0
                        },
                        "value": "x",
                        "optional": false,
                        "typeAnnotation": {
                          "type": "TsTypeAnnotation",
                          "span": {
                            "start": 272,
                            "end": 280,
                            "ctxt": 0
                          },
                          "typeAnnotation": {
                            "type": "TsKeywordType",
                            "span": {
                              "start": 274,
                              "end": 280,
                              "ctxt": 0
                            },
                            "kind": "number"
                          }
                        }
                      }
                    ],
                    "typeAnn": {
                      "type": "TsTypeAnnotation",
                      "span": {
                        "start": 281,
                        "end": 289,
                        "ctxt": 0
                      },
                      "typeAnnotation": {
                        "type": "TsKeywordType",
                        "span": {
                          "start": 283,
                          "end": 289,
                          "ctxt": 0
                        },
                        "kind": "string"
                      }
                    },
                    "typeParams": null
                  }
                ]
              }
            }
          },
          "init": null,
          "definite": false
        }
      ]
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 293,
        "end": 299,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 293,
          "end": 298,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 293,
            "end": 294,
            "ctxt": 0
          },
          "value": "t",
          "optional": false,
          "typeAnnotation": null
        },
        "right": {
          "type": "Identifier",
          "span": {
            "start": 297,
            "end": 298,
            "ctxt": 0
          },
          "value": "s",
          "optional": false
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 300,
        "end": 307,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 300,
          "end": 306,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 300,
            "end": 301,
            "ctxt": 0
          },
          "value": "t",
          "optional": false,
          "typeAnnotation": null
        },
        "right": {
          "type": "Identifier",
          "span": {
            "start": 304,
            "end": 306,
            "ctxt": 0
          },
          "value": "a2",
          "optional": false
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 308,
        "end": 314,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 308,
          "end": 313,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 308,
            "end": 309,
            "ctxt": 0
          },
          "value": "a",
          "optional": false,
          "typeAnnotation": null
        },
        "right": {
          "type": "Identifier",
          "span": {
            "start": 312,
            "end": 313,
            "ctxt": 0
          },
          "value": "s",
          "optional": false
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 315,
        "end": 322,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 315,
          "end": 321,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 315,
            "end": 316,
            "ctxt": 0
          },
          "value": "a",
          "optional": false,
          "typeAnnotation": null
        },
        "right": {
          "type": "Identifier",
          "span": {
            "start": 319,
            "end": 321,
            "ctxt": 0
          },
          "value": "a2",
          "optional": false
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 324,
        "end": 343,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 324,
          "end": 342,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 324,
            "end": 325,
            "ctxt": 0
          },
          "value": "t",
          "optional": false,
          "typeAnnotation": null
        },
        "right": {
          "type": "ObjectExpression",
          "span": {
            "start": 328,
            "end": 342,
            "ctxt": 0
          },
          "properties": [
            {
              "type": "KeyValueProperty",
              "key": {
                "type": "Identifier",
                "span": {
                  "start": 330,
                  "end": 331,
                  "ctxt": 0
                },
                "value": "f",
                "optional": false
              },
              "value": {
                "type": "ArrowFunctionExpression",
                "span": {
                  "start": 333,
                  "end": 340,
                  "ctxt": 0
                },
                "params": [],
                "body": {
                  "type": "NumericLiteral",
                  "span": {
                    "start": 339,
                    "end": 340,
                    "ctxt": 0
                  },
                  "value": 1.0,
                  "raw": "1"
                },
                "async": false,
                "generator": false,
                "typeParameters": null,
                "returnType": null
              }
            }
          ]
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 344,
        "end": 369,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 344,
          "end": 368,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 344,
            "end": 345,
            "ctxt": 0
          },
          "value": "t",
          "optional": false,
          "typeAnnotation": null
        },
        "right": {
          "type": "ObjectExpression",
          "span": {
            "start": 348,
            "end": 368,
            "ctxt": 0
          },
          "properties": [
            {
              "type": "KeyValueProperty",
              "key": {
                "type": "Identifier",
                "span": {
                  "start": 350,
                  "end": 351,
                  "ctxt": 0
                },
                "value": "f",
                "optional": false
              },
              "value": {
                "type": "ArrowFunctionExpression",
                "span": {
                  "start": 353,
                  "end": 366,
                  "ctxt": 0
                },
                "params": [
                  {
                    "type": "Identifier",
                    "span": {
                      "start": 357,
                      "end": 360,
                      "ctxt": 0
                    },
                    "value": "x",
                    "optional": false,
                    "typeAnnotation": {
                      "type": "TsTypeAnnotation",
                      "span": {
                        "start": 358,
                        "end": 360,
                        "ctxt": 0
                      },
                      "typeAnnotation": {
                        "type": "TsTypeReference",
                        "span": {
                          "start": 359,
                          "end": 360,
                          "ctxt": 0
                        },
                        "typeName": {
                          "type": "Identifier",
                          "span": {
                            "start": 359,
                            "end": 360,
                            "ctxt": 0
                          },
                          "value": "T",
                          "optional": false
                        },
                        "typeParams": null
                      }
                    }
                  }
                ],
                "body": {
                  "type": "NumericLiteral",
                  "span": {
                    "start": 365,
                    "end": 366,
                    "ctxt": 0
                  },
                  "value": 1.0,
                  "raw": "1"
                },
                "async": false,
                "generator": false,
                "typeParameters": {
                  "type": "TsTypeParameterDeclaration",
                  "span": {
                    "start": 353,
                    "end": 356,
                    "ctxt": 0
                  },
                  "parameters": [
                    {
                      "type": "TsTypeParameter",
                      "span": {
                        "start": 354,
                        "end": 355,
                        "ctxt": 0
                      },
                      "name": {
                        "type": "Identifier",
                        "span": {
                          "start": 354,
                          "end": 355,
                          "ctxt": 0
                        },
                        "value": "T",
                        "optional": false
                      },
                      "in": false,
                      "out": false,
                      "constraint": null,
                      "default": null
                    }
                  ]
                },
                "returnType": null
              }
            }
          ]
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 370,
        "end": 407,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 370,
          "end": 406,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 370,
            "end": 371,
            "ctxt": 0
          },
          "value": "t",
          "optional": false,
          "typeAnnotation": null
        },
        "right": {
          "type": "ObjectExpression",
          "span": {
            "start": 374,
            "end": 406,
            "ctxt": 0
          },
          "properties": [
            {
              "type": "KeyValueProperty",
              "key": {
                "type": "Identifier",
                "span": {
                  "start": 376,
                  "end": 377,
                  "ctxt": 0
                },
                "value": "f",
                "optional": false
              },
              "value": {
                "type": "FunctionExpression",
                "identifier": {
                  "type": "Identifier",
                  "span": {
                    "start": 388,
                    "end": 389,
                    "ctxt": 0
                  },
                  "value": "f",
                  "optional": false
                },
                "params": [],
                "decorators": [],
                "span": {
                  "start": 379,
                  "end": 404,
                  "ctxt": 0
                },
                "body": {
                  "type": "BlockStatement",
                  "span": {
                    "start": 392,
                    "end": 404,
                    "ctxt": 0
                  },
                  "stmts": [
                    {
                      "type": "ReturnStatement",
                      "span": {
                        "start": 394,
                        "end": 402,
                        "ctxt": 0
                      },
                      "argument": {
                        "type": "NumericLiteral",
                        "span": {
                          "start": 401,
                          "end": 402,
                          "ctxt": 0
                        },
                        "value": 1.0,
                        "raw": "1"
                      }
                    }
                  ]
                },
                "generator": false,
                "async": false,
                "typeParameters": null,
                "returnType": null
              }
            }
          ]
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 408,
        "end": 443,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 408,
          "end": 443,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 408,
            "end": 409,
            "ctxt": 0
          },
          "value": "t",
          "optional": false,
          "typeAnnotation": null
        },
        "right": {
          "type": "ObjectExpression",
          "span": {
            "start": 412,
            "end": 443,
            "ctxt": 0
          },
          "properties": [
            {
              "type": "MethodProperty",
              "key": {
                "type": "Identifier",
                "span": {
                  "start": 414,
                  "end": 415,
                  "ctxt": 0
                },
                "value": "f",
                "optional": false
              },
              "params": [
                {
                  "type": "Parameter",
                  "span": {
                    "start": 416,
                    "end": 425,
                    "ctxt": 0
                  },
                  "decorators": [],
                  "pat": {
                    "type": "Identifier",
                    "span": {
                      "start": 416,
                      "end": 425,
                      "ctxt": 0
                    },
                    "value": "x",
                    "optional": false,
                    "typeAnnotation": {
                      "type": "TsTypeAnnotation",
                      "span": {
                        "start": 417,
                        "end": 425,
                        "ctxt": 0
                      },
                      "typeAnnotation": {
                        "type": "TsKeywordType",
                        "span": {
                          "start": 419,
                          "end": 425,
                          "ctxt": 0
                        },
                        "kind": "number"
                      }
                    }
                  }
                }
              ],
              "decorators": [],
              "span": {
                "start": 414,
                "end": 441,
                "ctxt": 0
              },
              "body": {
                "type": "BlockStatement",
                "span": {
                  "start": 427,
                  "end": 441,
                  "ctxt": 0
                },
                "stmts": [
                  {
                    "type": "ReturnStatement",
                    "span": {
                      "start": 429,
                      "end": 439,
                      "ctxt": 0
                    },
                    "argument": {
                      "type": "StringLiteral",
                      "span": {
                        "start": 436,
                        "end": 438,
                        "ctxt": 0
                      },
                      "value": "",
                      "raw": "''"
                    }
                  }
                ]
              },
              "generator": false,
              "async": false,
              "typeParameters": null,
              "returnType": null
            }
          ]
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 444,
        "end": 462,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 444,
          "end": 462,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 444,
            "end": 445,
            "ctxt": 0
          },
          "value": "a",
          "optional": false,
          "typeAnnotation": null
        },
        "right": {
          "type": "ObjectExpression",
          "span": {
            "start": 448,
            "end": 462,
            "ctxt": 0
          },
          "properties": [
            {
              "type": "KeyValueProperty",
              "key": {
                "type": "Identifier",
                "span": {
                  "start": 450,
                  "end": 451,
                  "ctxt": 0
                },
                "value": "f",
                "optional": false
              },
              "value": {
                "type": "ArrowFunctionExpression",
                "span": {
                  "start": 453,
                  "end": 460,
                  "ctxt": 0
                },
                "params": [],
                "body": {
                  "type": "NumericLiteral",
                  "span": {
                    "start": 459,
                    "end": 460,
                    "ctxt": 0
                  },
                  "value": 1.0,
                  "raw": "1"
                },
                "async": false,
                "generator": false,
                "typeParameters": null,
                "returnType": null
              }
            }
          ]
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 463,
        "end": 489,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 463,
          "end": 488,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 463,
            "end": 464,
            "ctxt": 0
          },
          "value": "a",
          "optional": false,
          "typeAnnotation": null
        },
        "right": {
          "type": "ObjectExpression",
          "span": {
            "start": 467,
            "end": 488,
            "ctxt": 0
          },
          "properties": [
            {
              "type": "KeyValueProperty",
              "key": {
                "type": "Identifier",
                "span": {
                  "start": 469,
                  "end": 470,
                  "ctxt": 0
                },
                "value": "f",
                "optional": false
              },
              "value": {
                "type": "ArrowFunctionExpression",
                "span": {
                  "start": 472,
                  "end": 486,
                  "ctxt": 0
                },
                "params": [
                  {
                    "type": "Identifier",
                    "span": {
                      "start": 476,
                      "end": 480,
                      "ctxt": 0
                    },
                    "value": "x",
                    "optional": false,
                    "typeAnnotation": {
                      "type": "TsTypeAnnotation",
                      "span": {
                        "start": 477,
                        "end": 480,
                        "ctxt": 0
                      },
                      "typeAnnotation": {
                        "type": "TsTypeReference",
                        "span": {
                          "start": 479,
                          "end": 480,
                          "ctxt": 0
                        },
                        "typeName": {
                          "type": "Identifier",
                          "span": {
                            "start": 479,
                            "end": 480,
                            "ctxt": 0
                          },
                          "value": "T",
                          "optional": false
                        },
                        "typeParams": null
                      }
                    }
                  }
                ],
                "body": {
                  "type": "NumericLiteral",
                  "span": {
                    "start": 485,
                    "end": 486,
                    "ctxt": 0
                  },
                  "value": 1.0,
                  "raw": "1"
                },
                "async": false,
                "generator": false,
                "typeParameters": {
                  "type": "TsTypeParameterDeclaration",
                  "span": {
                    "start": 472,
                    "end": 475,
                    "ctxt": 0
                  },
                  "parameters": [
                    {
                      "type": "TsTypeParameter",
                      "span": {
                        "start": 473,
                        "end": 474,
                        "ctxt": 0
                      },
                      "name": {
                        "type": "Identifier",
                        "span": {
                          "start": 473,
                          "end": 474,
                          "ctxt": 0
                        },
                        "value": "T",
                        "optional": false
                      },
                      "in": false,
                      "out": false,
                      "constraint": null,
                      "default": null
                    }
                  ]
                },
                "returnType": null
              }
            }
          ]
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 490,
        "end": 536,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 490,
          "end": 536,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 490,
            "end": 491,
            "ctxt": 0
          },
          "value": "a",
          "optional": false,
          "typeAnnotation": null
        },
        "right": {
          "type": "ObjectExpression",
          "span": {
            "start": 494,
            "end": 536,
            "ctxt": 0
          },
          "properties": [
            {
              "type": "KeyValueProperty",
              "key": {
                "type": "Identifier",
                "span": {
                  "start": 496,
                  "end": 497,
                  "ctxt": 0
                },
                "value": "f",
                "optional": false
              },
              "value": {
                "type": "FunctionExpression",
                "identifier": null,
                "params": [
                  {
                    "type": "Parameter",
                    "span": {
                      "start": 509,
                      "end": 518,
                      "ctxt": 0
                    },
                    "decorators": [],
                    "pat": {
                      "type": "Identifier",
                      "span": {
                        "start": 509,
                        "end": 518,
                        "ctxt": 0
                      },
                      "value": "x",
                      "optional": false,
                      "typeAnnotation": {
                        "type": "TsTypeAnnotation",
                        "span": {
                          "start": 510,
                          "end": 518,
                          "ctxt": 0
                        },
                        "typeAnnotation": {
                          "type": "TsKeywordType",
                          "span": {
                            "start": 512,
                            "end": 518,
                            "ctxt": 0
                          },
                          "kind": "number"
                        }
                      }
                    }
                  }
                ],
                "decorators": [],
                "span": {
                  "start": 499,
                  "end": 534,
                  "ctxt": 0
                },
                "body": {
                  "type": "BlockStatement",
                  "span": {
                    "start": 520,
                    "end": 534,
                    "ctxt": 0
                  },
                  "stmts": [
                    {
                      "type": "ReturnStatement",
                      "span": {
                        "start": 522,
                        "end": 532,
                        "ctxt": 0
                      },
                      "argument": {
                        "type": "StringLiteral",
                        "span": {
                          "start": 529,
                          "end": 531,
                          "ctxt": 0
                        },
                        "value": "",
                        "raw": "''"
                      }
                    }
                  ]
                },
                "generator": false,
                "async": false,
                "typeParameters": null,
                "returnType": null
              }
            }
          ]
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 548,
        "end": 560,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 548,
          "end": 559,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 548,
            "end": 549,
            "ctxt": 0
          },
          "value": "t",
          "optional": false,
          "typeAnnotation": null
        },
        "right": {
          "type": "ArrowFunctionExpression",
          "span": {
            "start": 552,
            "end": 559,
            "ctxt": 0
          },
          "params": [],
          "body": {
            "type": "NumericLiteral",
            "span": {
              "start": 558,
              "end": 559,
              "ctxt": 0
            },
            "value": 1.0,
            "raw": "1"
          },
          "async": false,
          "generator": false,
          "typeParameters": null,
          "returnType": null
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 561,
        "end": 600,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 561,
          "end": 600,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 561,
            "end": 562,
            "ctxt": 0
          },
          "value": "t",
          "optional": false,
          "typeAnnotation": null
        },
        "right": {
          "type": "FunctionExpression",
          "identifier": null,
          "params": [
            {
              "type": "Parameter",
              "span": {
                "start": 575,
                "end": 584,
                "ctxt": 0
              },
              "decorators": [],
              "pat": {
                "type": "Identifier",
                "span": {
                  "start": 575,
                  "end": 584,
                  "ctxt": 0
                },
                "value": "x",
                "optional": false,
                "typeAnnotation": {
                  "type": "TsTypeAnnotation",
                  "span": {
                    "start": 576,
                    "end": 584,
                    "ctxt": 0
                  },
                  "typeAnnotation": {
                    "type": "TsKeywordType",
                    "span": {
                      "start": 578,
                      "end": 584,
                      "ctxt": 0
                    },
                    "kind": "number"
                  }
                }
              }
            }
          ],
          "decorators": [],
          "span": {
            "start": 565,
            "end": 600,
            "ctxt": 0
          },
          "body": {
            "type": "BlockStatement",
            "span": {
              "start": 586,
              "end": 600,
              "ctxt": 0
            },
            "stmts": [
              {
                "type": "ReturnStatement",
                "span": {
                  "start": 588,
                  "end": 598,
                  "ctxt": 0
                },
                "argument": {
                  "type": "StringLiteral",
                  "span": {
                    "start": 595,
                    "end": 597,
                    "ctxt": 0
                  },
                  "value": "",
                  "raw": "''"
                }
              }
            ]
          },
          "generator": false,
          "async": false,
          "typeParameters": null,
          "returnType": null
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 601,
        "end": 613,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 601,
          "end": 612,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 601,
            "end": 602,
            "ctxt": 0
          },
          "value": "a",
          "optional": false,
          "typeAnnotation": null
        },
        "right": {
          "type": "ArrowFunctionExpression",
          "span": {
            "start": 605,
            "end": 612,
            "ctxt": 0
          },
          "params": [],
          "body": {
            "type": "NumericLiteral",
            "span": {
              "start": 611,
              "end": 612,
              "ctxt": 0
            },
            "value": 1.0,
            "raw": "1"
          },
          "async": false,
          "generator": false,
          "typeParameters": null,
          "returnType": null
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 614,
        "end": 653,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 614,
          "end": 653,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 614,
            "end": 615,
            "ctxt": 0
          },
          "value": "a",
          "optional": false,
          "typeAnnotation": null
        },
        "right": {
          "type": "FunctionExpression",
          "identifier": null,
          "params": [
            {
              "type": "Parameter",
              "span": {
                "start": 628,
                "end": 637,
                "ctxt": 0
              },
              "decorators": [],
              "pat": {
                "type": "Identifier",
                "span": {
                  "start": 628,
                  "end": 637,
                  "ctxt": 0
                },
                "value": "x",
                "optional": false,
                "typeAnnotation": {
                  "type": "TsTypeAnnotation",
                  "span": {
                    "start": 629,
                    "end": 637,
                    "ctxt": 0
                  },
                  "typeAnnotation": {
                    "type": "TsKeywordType",
                    "span": {
                      "start": 631,
                      "end": 637,
                      "ctxt": 0
                    },
                    "kind": "number"
                  }
                }
              }
            }
          ],
          "decorators": [],
          "span": {
            "start": 618,
            "end": 653,
            "ctxt": 0
          },
          "body": {
            "type": "BlockStatement",
            "span": {
              "start": 639,
              "end": 653,
              "ctxt": 0
            },
            "stmts": [
              {
                "type": "ReturnStatement",
                "span": {
                  "start": 641,
                  "end": 651,
                  "ctxt": 0
                },
                "argument": {
                  "type": "StringLiteral",
                  "span": {
                    "start": 648,
                    "end": 650,
                    "ctxt": 0
                  },
                  "value": "",
                  "raw": "''"
                }
              }
            ]
          },
          "generator": false,
          "async": false,
          "typeParameters": null,
          "returnType": null
        }
      }
    },
    {
      "type": "TsInterfaceDeclaration",
      "span": {
        "start": 655,
        "end": 695,
        "ctxt": 0
      },
      "id": {
        "type": "Identifier",
        "span": {
          "start": 665,
          "end": 667,
          "ctxt": 0
        },
        "value": "S2",
        "optional": false
      },
      "declare": false,
      "typeParams": null,
      "extends": [],
      "body": {
        "type": "TsInterfaceBody",
        "span": {
          "start": 668,
          "end": 695,
          "ctxt": 0
        },
        "body": [
          {
            "type": "TsMethodSignature",
            "span": {
              "start": 674,
              "end": 693,
              "ctxt": 0
            },
            "readonly": false,
            "key": {
              "type": "Identifier",
              "span": {
                "start": 674,
                "end": 675,
                "ctxt": 0
              },
              "value": "f",
              "optional": false
            },
            "computed": false,
            "optional": false,
            "params": [
              {
                "type": "Identifier",
                "span": {
                  "start": 676,
                  "end": 685,
                  "ctxt": 0
                },
                "value": "x",
                "optional": false,
                "typeAnnotation": {
                  "type": "TsTypeAnnotation",
                  "span": {
                    "start": 677,
                    "end": 685,
                    "ctxt": 0
                  },
                  "typeAnnotation": {
                    "type": "TsKeywordType",
                    "span": {
                      "start": 679,
                      "end": 685,
                      "ctxt": 0
                    },
                    "kind": "string"
                  }
                }
              }
            ],
            "typeAnn": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 686,
                "end": 692,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsKeywordType",
                "span": {
                  "start": 688,
                  "end": 692,
                  "ctxt": 0
                },
                "kind": "void"
              }
            },
            "typeParams": null
          }
        ]
      }
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 696,
        "end": 707,
        "ctxt": 0
      },
      "kind": "var",
      "declare": false,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 700,
            "end": 706,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 700,
              "end": 702,
              "ctxt": 0
            },
            "value": "s2",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 702,
                "end": 706,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsTypeReference",
                "span": {
                  "start": 704,
                  "end": 706,
                  "ctxt": 0
                },
                "typeName": {
                  "type": "Identifier",
                  "span": {
                    "start": 704,
                    "end": 706,
                    "ctxt": 0
                  },
                  "value": "S2",
                  "optional": false
                },
                "typeParams": null
              }
            }
          },
          "init": null,
          "definite": false
        }
      ]
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 708,
        "end": 739,
        "ctxt": 0
      },
      "kind": "var",
      "declare": false,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 712,
            "end": 738,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 712,
              "end": 714,
              "ctxt": 0
            },
            "value": "a3",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 714,
                "end": 738,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsTypeLiteral",
                "span": {
                  "start": 716,
                  "end": 738,
                  "ctxt": 0
                },
                "members": [
                  {
                    "type": "TsMethodSignature",
                    "span": {
                      "start": 718,
                      "end": 736,
                      "ctxt": 0
                    },
                    "readonly": false,
                    "key": {
                      "type": "Identifier",
                      "span": {
                        "start": 718,
                        "end": 719,
                        "ctxt": 0
                      },
                      "value": "f",
                      "optional": false
                    },
                    "computed": false,
                    "optional": false,
                    "params": [
                      {
                        "type": "Identifier",
                        "span": {
                          "start": 720,
                          "end": 729,
                          "ctxt": 0
                        },
                        "value": "x",
                        "optional": false,
                        "typeAnnotation": {
                          "type": "TsTypeAnnotation",
                          "span": {
                            "start": 721,
                            "end": 729,
                            "ctxt": 0
                          },
                          "typeAnnotation": {
                            "type": "TsKeywordType",
                            "span": {
                              "start": 723,
                              "end": 729,
                              "ctxt": 0
                            },
                            "kind": "string"
                          }
                        }
                      }
                    ],
                    "typeAnn": {
                      "type": "TsTypeAnnotation",
                      "span": {
                        "start": 730,
                        "end": 736,
                        "ctxt": 0
                      },
                      "typeAnnotation": {
                        "type": "TsKeywordType",
                        "span": {
                          "start": 732,
                          "end": 736,
                          "ctxt": 0
                        },
                        "kind": "void"
                      }
                    },
                    "typeParams": null
                  }
                ]
              }
            }
          },
          "init": null,
          "definite": false
        }
      ]
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 760,
        "end": 767,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 760,
          "end": 766,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 760,
            "end": 761,
            "ctxt": 0
          },
          "value": "t",
          "optional": false,
          "typeAnnotation": null
        },
        "right": {
          "type": "Identifier",
          "span": {
            "start": 764,
            "end": 766,
            "ctxt": 0
          },
          "value": "s2",
          "optional": false
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 768,
        "end": 775,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 768,
          "end": 774,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 768,
            "end": 769,
            "ctxt": 0
          },
          "value": "t",
          "optional": false,
          "typeAnnotation": null
        },
        "right": {
          "type": "Identifier",
          "span": {
            "start": 772,
            "end": 774,
            "ctxt": 0
          },
          "value": "a3",
          "optional": false
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 776,
        "end": 797,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 776,
          "end": 796,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 776,
            "end": 777,
            "ctxt": 0
          },
          "value": "t",
          "optional": false,
          "typeAnnotation": null
        },
        "right": {
          "type": "ArrowFunctionExpression",
          "span": {
            "start": 780,
            "end": 796,
            "ctxt": 0
          },
          "params": [
            {
              "type": "Identifier",
              "span": {
                "start": 781,
                "end": 790,
                "ctxt": 0
              },
              "value": "x",
              "optional": false,
              "typeAnnotation": {
                "type": "TsTypeAnnotation",
                "span": {
                  "start": 782,
                  "end": 790,
                  "ctxt": 0
                },
                "typeAnnotation": {
                  "type": "TsKeywordType",
                  "span": {
                    "start": 784,
                    "end": 790,
                    "ctxt": 0
                  },
                  "kind": "string"
                }
              }
            }
          ],
          "body": {
            "type": "NumericLiteral",
            "span": {
              "start": 795,
              "end": 796,
              "ctxt": 0
            },
            "value": 1.0,
            "raw": "1"
          },
          "async": false,
          "generator": false,
          "typeParameters": null,
          "returnType": null
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 798,
        "end": 837,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 798,
          "end": 837,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 798,
            "end": 799,
            "ctxt": 0
          },
          "value": "t",
          "optional": false,
          "typeAnnotation": null
        },
        "right": {
          "type": "FunctionExpression",
          "identifier": null,
          "params": [
            {
              "type": "Parameter",
              "span": {
                "start": 812,
                "end": 821,
                "ctxt": 0
              },
              "decorators": [],
              "pat": {
                "type": "Identifier",
                "span": {
                  "start": 812,
                  "end": 821,
                  "ctxt": 0
                },
                "value": "x",
                "optional": false,
                "typeAnnotation": {
                  "type": "TsTypeAnnotation",
                  "span": {
                    "start": 813,
                    "end": 821,
                    "ctxt": 0
                  },
                  "typeAnnotation": {
                    "type": "TsKeywordType",
                    "span": {
                      "start": 815,
                      "end": 821,
                      "ctxt": 0
                    },
                    "kind": "string"
                  }
                }
              }
            }
          ],
          "decorators": [],
          "span": {
            "start": 802,
            "end": 837,
            "ctxt": 0
          },
          "body": {
            "type": "BlockStatement",
            "span": {
              "start": 823,
              "end": 837,
              "ctxt": 0
            },
            "stmts": [
              {
                "type": "ReturnStatement",
                "span": {
                  "start": 825,
                  "end": 835,
                  "ctxt": 0
                },
                "argument": {
                  "type": "StringLiteral",
                  "span": {
                    "start": 832,
                    "end": 834,
                    "ctxt": 0
                  },
                  "value": "",
                  "raw": "''"
                }
              }
            ]
          },
          "generator": false,
          "async": false,
          "typeParameters": null,
          "returnType": null
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 838,
        "end": 845,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 838,
          "end": 844,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 838,
            "end": 839,
            "ctxt": 0
          },
          "value": "a",
          "optional": false,
          "typeAnnotation": null
        },
        "right": {
          "type": "Identifier",
          "span": {
            "start": 842,
            "end": 844,
            "ctxt": 0
          },
          "value": "s2",
          "optional": false
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 846,
        "end": 853,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 846,
          "end": 852,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 846,
            "end": 847,
            "ctxt": 0
          },
          "value": "a",
          "optional": false,
          "typeAnnotation": null
        },
        "right": {
          "type": "Identifier",
          "span": {
            "start": 850,
            "end": 852,
            "ctxt": 0
          },
          "value": "a3",
          "optional": false
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 854,
        "end": 875,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 854,
          "end": 874,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 854,
            "end": 855,
            "ctxt": 0
          },
          "value": "a",
          "optional": false,
          "typeAnnotation": null
        },
        "right": {
          "type": "ArrowFunctionExpression",
          "span": {
            "start": 858,
            "end": 874,
            "ctxt": 0
          },
          "params": [
            {
              "type": "Identifier",
              "span": {
                "start": 859,
                "end": 868,
                "ctxt": 0
              },
              "value": "x",
              "optional": false,
              "typeAnnotation": {
                "type": "TsTypeAnnotation",
                "span": {
                  "start": 860,
                  "end": 868,
                  "ctxt": 0
                },
                "typeAnnotation": {
                  "type": "TsKeywordType",
                  "span": {
                    "start": 862,
                    "end": 868,
                    "ctxt": 0
                  },
                  "kind": "string"
                }
              }
            }
          ],
          "body": {
            "type": "NumericLiteral",
            "span": {
              "start": 873,
              "end": 874,
              "ctxt": 0
            },
            "value": 1.0,
            "raw": "1"
          },
          "async": false,
          "generator": false,
          "typeParameters": null,
          "returnType": null
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 876,
        "end": 915,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 876,
          "end": 915,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 876,
            "end": 877,
            "ctxt": 0
          },
          "value": "a",
          "optional": false,
          "typeAnnotation": null
        },
        "right": {
          "type": "FunctionExpression",
          "identifier": null,
          "params": [
            {
              "type": "Parameter",
              "span": {
                "start": 890,
                "end": 899,
                "ctxt": 0
              },
              "decorators": [],
              "pat": {
                "type": "Identifier",
                "span": {
                  "start": 890,
                  "end": 899,
                  "ctxt": 0
                },
                "value": "x",
                "optional": false,
                "typeAnnotation": {
                  "type": "TsTypeAnnotation",
                  "span": {
                    "start": 891,
                    "end": 899,
                    "ctxt": 0
                  },
                  "typeAnnotation": {
                    "type": "TsKeywordType",
                    "span": {
                      "start": 893,
                      "end": 899,
                      "ctxt": 0
                    },
                    "kind": "string"
                  }
                }
              }
            }
          ],
          "decorators": [],
          "span": {
            "start": 880,
            "end": 915,
            "ctxt": 0
          },
          "body": {
            "type": "BlockStatement",
            "span": {
              "start": 901,
              "end": 915,
              "ctxt": 0
            },
            "stmts": [
              {
                "type": "ReturnStatement",
                "span": {
                  "start": 903,
                  "end": 913,
                  "ctxt": 0
                },
                "argument": {
                  "type": "StringLiteral",
                  "span": {
                    "start": 910,
                    "end": 912,
                    "ctxt": 0
                  },
                  "value": "",
                  "raw": "''"
                }
              }
            ]
          },
          "generator": false,
          "async": false,
          "typeParameters": null,
          "returnType": null
        }
      }
    }
  ],
  "interpreter": null
}