{
  "programs": [
    "Program {\n    span: 138..1437,\n    kind: Script,\n    body: [\n        _,\n        _,\n        _,\n        _,\n        _,\n    ],\n}"
  ],
  "stmts": [
    "Expr(\n    ExprStmt {\n        span: 164..171,\n        expr: _,\n    },\n)",
    "Expr(\n    ExprStmt {\n        span: 208..215,\n        expr: _,\n    },\n)",
    "Expr(\n    ExprStmt {\n        span: 256..265,\n        expr: _,\n    },\n)",
    "Decl(\n    _,\n)",
    "Decl(\n    _,\n)",
    "Decl(\n    _,\n)",
    "Decl(\n    _,\n)",
    "Decl(\n    _,\n)",
    "Decl(\n    _,\n)",
    "Decl(\n    _,\n)",
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    "Decl(\n    _,\n)",
    "Decl(\n    _,\n)",
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    "Expr(\n    ExprStmt {\n        span: 684..696,\n        expr: _,\n    },\n)",
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    "Expr(\n    ExprStmt {\n        span: 794..806,\n        expr: _,\n    },\n)",
    "Expr(\n    ExprStmt {\n        span: 805..817,\n        expr: _,\n    },\n)",
    "Expr(\n    ExprStmt {\n        span: 816..824,\n        expr: _,\n    },\n)",
    "Decl(\n    _,\n)",
    "Decl(\n    _,\n)",
    "Decl(\n    _,\n)",
    "Decl(\n    _,\n)",
    "Decl(\n    _,\n)",
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    "Decl(\n    _,\n)",
    "Decl(\n    _,\n)",
    "Decl(\n    _,\n)",
    "Decl(\n    _,\n)",
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    "Expr(\n    ExprStmt {\n        span: 1422..1436,\n        expr: _,\n    },\n)",
    "Decl(\n    _,\n)"
  ],
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    "TsInterface(\n    TsInterfaceDecl {\n        span: 305..351,\n        ident: Ident {\n            span: 315..316,\n            sym: \"C\",\n        },\n        declare: false,\n        type_params: [],\n        extends: [],\n        body: [\n            TsTypeMember {\n                span: 327..343,\n                kind: Property,\n                name: Some(\n                    Ident(\n                        Ident {\n                            span: 327..330,\n                            sym: \"opt\",\n                        },\n                    ),\n                ),\n                optional: true,\n                readonly: false,\n                params: [],\n                ty: Some(\n                    _,\n                ),\n            },\n        ],\n    },\n)",
    "Var(\n    VarDecl {\n        span: 348..366,\n        kind: Var,\n        declare: false,\n        declarators: [\n            VarDeclarator {\n                span: 348..357,\n                name: _,\n                init: None,\n            },\n        ],\n    },\n)",
    "Var(\n    VarDecl {\n        span: 363..393,\n        kind: Var,\n        declare: false,\n        declarators: [\n            VarDeclarator {\n                span: 363..393,\n                name: _,\n                init: None,\n            },\n        ],\n    },\n)",
    "Var(\n    VarDecl {\n        span: 390..457,\n        kind: Var,\n        declare: false,\n        declarators: [\n            VarDeclarator {\n                span: 390..457,\n                name: _,\n                init: Some(\n                    _,\n                ),\n            },\n        ],\n    },\n)",
    "TsInterface(\n    TsInterfaceDecl {\n        span: 448..502,\n        ident: Ident {\n            span: 458..459,\n            sym: \"D\",\n        },\n        declare: false,\n        type_params: [],\n        extends: [],\n        body: [\n            TsTypeMember {\n                span: 470..488,\n                kind: Property,\n                name: Some(\n                    Ident(\n                        Ident {\n                            span: 470..475,\n                            sym: \"other\",\n                        },\n                    ),\n                ),\n                optional: false,\n                readonly: false,\n                params: [],\n                ty: Some(\n                    _,\n                ),\n            },\n        ],\n    },\n)",
    "TsInterface(\n    TsInterfaceDecl {\n        span: 493..550,\n        ident: Ident {\n            span: 503..504,\n            sym: \"E\",\n        },\n        declare: false,\n        type_params: [],\n        extends: [],\n        body: [\n            TsTypeMember {\n                span: 515..536,\n                kind: Property,\n                name: Some(\n                    Ident(\n                        Ident {\n                            span: 515..520,\n                            sym: \"other\",\n                        },\n                    ),\n                ),\n                optional: false,\n                readonly: false,\n                params: [],\n                ty: Some(\n                    _,\n                ),\n            },\n        ],\n    },\n)",
    "TsInterface(\n    TsInterfaceDecl {\n        span: 541..593,\n        ident: Ident {\n            span: 551..552,\n            sym: \"F\",\n        },\n        declare: false,\n        type_params: [],\n        extends: [],\n        body: [\n            TsTypeMember {\n                span: 563..585,\n                kind: Property,\n                name: Some(\n                    Ident(\n                        Ident {\n                            span: 563..568,\n                            sym: \"other\",\n                        },\n                    ),\n                ),\n                optional: true,\n                readonly: false,\n                params: [],\n                ty: Some(\n                    _,\n                ),\n            },\n        ],\n    },\n)",
    "Var(\n    VarDecl {\n        span: 590..607,\n        kind: Var,\n        declare: false,\n        declarators: [\n            VarDeclarator {\n                span: 590..599,\n                name: _,\n                init: None,\n            },\n        ],\n    },\n)",
    "Var(\n    VarDecl {\n        span: 604..621,\n        kind: Var,\n        declare: false,\n        declarators: [\n            VarDeclarator {\n                span: 604..613,\n                name: _,\n                init: None,\n            },\n        ],\n    },\n)",
    "Var(\n    VarDecl {\n        span: 618..674,\n        kind: Var,\n        declare: false,\n        declarators: [\n            VarDeclarator {\n                span: 618..627,\n                name: _,\n                init: None,\n            },\n        ],\n    },\n)",
    "TsModule(\n    TsModuleDecl {\n        span: 259..832,\n        declare: false,\n        global: false,\n        namespace: false,\n        id: Ident(\n            Ident {\n                span: 266..283,\n                sym: \"TargetHasOptional\",\n            },\n        ),\n        body: Some(\n            ModuleBlock(\n                [\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                ],\n            ),\n        ),\n    },\n)",
    "TsInterface(\n    TsInterfaceDecl {\n        span: 872..917,\n        ident: Ident {\n            span: 882..883,\n            sym: \"C\",\n        },\n        declare: false,\n        type_params: [],\n        extends: [],\n        body: [\n            TsTypeMember {\n                span: 894..909,\n                kind: Property,\n                name: Some(\n                    Ident(\n                        Ident {\n                            span: 894..897,\n                            sym: \"opt\",\n                        },\n                    ),\n                ),\n                optional: false,\n                readonly: false,\n                params: [],\n                ty: Some(\n                    _,\n                ),\n            },\n        ],\n    },\n)",
    "Var(\n    VarDecl {\n        span: 914..932,\n        kind: Var,\n        declare: false,\n        declarators: [\n            VarDeclarator {\n                span: 914..923,\n                name: _,\n                init: None,\n            },\n        ],\n    },\n)",
    "Var(\n    VarDecl {\n        span: 929..958,\n        kind: Var,\n        declare: false,\n        declarators: [\n            VarDeclarator {\n                span: 929..958,\n                name: _,\n                init: None,\n            },\n        ],\n    },\n)",
    "Var(\n    VarDecl {\n        span: 955..1012,\n        kind: Var,\n        declare: false,\n        declarators: [\n            VarDeclarator {\n                span: 955..1012,\n                name: _,\n                init: None,\n            },\n        ],\n    },\n)",
    "TsInterface(\n    TsInterfaceDecl {\n        span: 1003..1058,\n        ident: Ident {\n            span: 1013..1014,\n            sym: \"D\",\n        },\n        declare: false,\n        type_params: [],\n        extends: [],\n        body: [\n            TsTypeMember {\n                span: 1025..1044,\n                kind: Property,\n                name: Some(\n                    Ident(\n                        Ident {\n                            span: 1025..1030,\n                            sym: \"other\",\n                        },\n                    ),\n                ),\n                optional: true,\n                readonly: false,\n                params: [],\n                ty: Some(\n                    _,\n                ),\n            },\n        ],\n    },\n)",
    "TsInterface(\n    TsInterfaceDecl {\n        span: 1049..1107,\n        ident: Ident {\n            span: 1059..1060,\n            sym: \"E\",\n        },\n        declare: false,\n        type_params: [],\n        extends: [],\n        body: [\n            TsTypeMember {\n                span: 1071..1093,\n                kind: Property,\n                name: Some(\n                    Ident(\n                        Ident {\n                            span: 1071..1076,\n                            sym: \"other\",\n                        },\n                    ),\n                ),\n                optional: true,\n                readonly: false,\n                params: [],\n                ty: Some(\n                    _,\n                ),\n            },\n        ],\n    },\n)",
    "TsInterface(\n    TsInterfaceDecl {\n        span: 1098..1149,\n        ident: Ident {\n            span: 1108..1109,\n            sym: \"F\",\n        },\n        declare: false,\n        type_params: [],\n        extends: [],\n        body: [\n            TsTypeMember {\n                span: 1120..1141,\n                kind: Property,\n                name: Some(\n                    Ident(\n                        Ident {\n                            span: 1120..1125,\n                            sym: \"other\",\n                        },\n                    ),\n                ),\n                optional: false,\n                readonly: false,\n                params: [],\n                ty: Some(\n                    _,\n                ),\n            },\n        ],\n    },\n)",
    "Var(\n    VarDecl {\n        span: 1146..1163,\n        kind: Var,\n        declare: false,\n        declarators: [\n            VarDeclarator {\n                span: 1146..1155,\n                name: _,\n                init: None,\n            },\n        ],\n    },\n)",
    "Var(\n    VarDecl {\n        span: 1160..1177,\n        kind: Var,\n        declare: false,\n        declarators: [\n            VarDeclarator {\n                span: 1160..1169,\n                name: _,\n                init: None,\n            },\n        ],\n    },\n)",
    "Var(\n    VarDecl {\n        span: 1174..1190,\n        kind: Var,\n        declare: false,\n        declarators: [\n            VarDeclarator {\n                span: 1174..1183,\n                name: _,\n                init: None,\n            },\n        ],\n    },\n)",
    "TsModule(\n    TsModuleDecl {\n        span: 826..1437,\n        declare: false,\n        global: false,\n        namespace: false,\n        id: Ident(\n            Ident {\n                span: 833..850,\n                sym: \"SourceHasOptional\",\n            },\n        ),\n        body: Some(\n            ModuleBlock(\n                [\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                    _,\n                ],\n            ),\n        ),\n    },\n)"
  ],
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    "Ident(\n    Ident {\n        span: 352..353,\n        sym: \"c\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 367..368,\n        sym: \"a\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 394..395,\n        sym: \"b\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 594..595,\n        sym: \"d\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 608..609,\n        sym: \"e\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 622..623,\n        sym: \"f\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 673..674,\n        sym: \"c\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 684..685,\n        sym: \"c\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 695..696,\n        sym: \"c\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 706..707,\n        sym: \"a\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 717..718,\n        sym: \"a\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 728..729,\n        sym: \"a\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 739..740,\n        sym: \"b\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 750..751,\n        sym: \"b\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 761..762,\n        sym: \"b\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 783..784,\n        sym: \"c\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 794..795,\n        sym: \"a\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 805..806,\n        sym: \"b\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 816..817,\n        sym: \"b\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 918..919,\n        sym: \"c\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 933..934,\n        sym: \"a\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 959..960,\n        sym: \"b\",\n    },\n)",
    "Assign(\n    AssignPat {\n        span: 961..1012,\n        left: _,\n        right: _,\n    },\n)",
    "Ident(\n    Ident {\n        span: 1150..1151,\n        sym: \"d\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 1164..1165,\n        sym: \"e\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 1178..1179,\n        sym: \"f\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 1189..1190,\n        sym: \"c\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 1209..1210,\n        sym: \"c\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 1229..1230,\n        sym: \"c\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 1249..1250,\n        sym: \"c\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 1267..1268,\n        sym: \"a\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 1287..1288,\n        sym: \"a\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 1307..1308,\n        sym: \"a\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 1327..1328,\n        sym: \"a\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 1345..1346,\n        sym: \"b\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 1365..1366,\n        sym: \"b\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 1385..1386,\n        sym: \"b\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 1405..1406,\n        sym: \"b\",\n    },\n)",
    "Ident(\n    Ident {\n        span: 1422..1423,\n        sym: \"b\",\n    },\n)"
  ],
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    "Call(\n    CallExpr {\n        span: 423..427,\n        callee: _,\n        args: [],\n    },\n)",
    "New(\n    NewExpr {\n        span: 415..427,\n        callee: _,\n        args: [],\n    },\n)",
    "Object(\n    ObjectExpr {\n        span: 408..457,\n        props: [\n            KeyValueProp {\n                span: 410..427,\n                key: Ident(\n                    Ident {\n                        span: 410..413,\n                        sym: \"opt\",\n                    },\n                ),\n                value: _,\n            },\n        ],\n    },\n)",
    "Ident(\n    Ident {\n        span: 677..678,\n        sym: \"d\",\n    },\n)",
    "Assign(\n    AssignExpr {\n        span: 675..679,\n        left: _,\n        op: Assign,\n        right: _,\n    },\n)",
    "Ident(\n    Ident {\n        span: 688..689,\n        sym: \"e\",\n    },\n)",
    "Assign(\n    AssignExpr {\n        span: 686..690,\n        left: _,\n        op: Assign,\n        right: _,\n    },\n)",
    "Ident(\n    Ident {\n        span: 699..700,\n        sym: \"f\",\n    },\n)",
    "Assign(\n    AssignExpr {\n        span: 697..701,\n        left: _,\n        op: Assign,\n        right: _,\n    },\n)",
    "Ident(\n    Ident {\n        span: 710..711,\n        sym: \"d\",\n    },\n)",
    "Assign(\n    AssignExpr {\n        span: 708..712,\n        left: _,\n        op: Assign,\n        right: _,\n    },\n)",
    "Ident(\n    Ident {\n        span: 721..722,\n        sym: \"e\",\n    },\n)",
    "Assign(\n    AssignExpr {\n        span: 719..723,\n        left: _,\n        op: Assign,\n        right: _,\n    },\n)",
    "Ident(\n    Ident {\n        span: 732..733,\n        sym: \"f\",\n    },\n)",
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    "Assign(\n    AssignExpr {\n        span: 752..756,\n        left: _,\n        op: Assign,\n        right: _,\n    },\n)",
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    "Assign(\n    AssignExpr {\n        span: 763..767,\n        left: _,\n        op: Assign,\n        right: _,\n    },\n)",
    "Ident(\n    Ident {\n        span: 787..788,\n        sym: \"a\",\n    },\n)",
    "Assign(\n    AssignExpr {\n        span: 785..789,\n        left: _,\n        op: Assign,\n        right: _,\n    },\n)",
    "Ident(\n    Ident {\n        span: 798..799,\n        sym: \"c\",\n    },\n)",
    "Assign(\n    AssignExpr {\n        span: 796..800,\n        left: _,\n        op: Assign,\n        right: _,\n    },\n)",
    "Ident(\n    Ident {\n        span: 809..810,\n        sym: \"a\",\n    },\n)",
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    "Ident(\n    Ident {\n        span: 820..821,\n        sym: \"c\",\n    },\n)",
    "Assign(\n    AssignExpr {\n        span: 818..822,\n        left: _,\n        op: Assign,\n        right: _,\n    },\n)",
    "Ident(\n    Ident {\n        span: 974..978,\n        sym: \"Base\",\n    },\n)",
    "Call(\n    CallExpr {\n        span: 978..982,\n        callee: _,\n        args: [],\n    },\n)",
    "New(\n    NewExpr {\n        span: 970..982,\n        callee: _,\n        args: [],\n    },\n)",
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    "Ident(\n    Ident {\n        span: 1193..1194,\n        sym: \"d\",\n    },\n)",
    "Assign(\n    AssignExpr {\n        span: 1191..1195,\n        left: _,\n        op: Assign,\n        right: _,\n    },\n)",
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    "Assign(\n    AssignExpr {\n        span: 1211..1215,\n        left: _,\n        op: Assign,\n        right: _,\n    },\n)",
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    "Ident(\n    Ident {\n        span: 1253..1254,\n        sym: \"a\",\n    },\n)",
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    "Ident(\n    Ident {\n        span: 1271..1272,\n        sym: \"d\",\n    },\n)",
    "Assign(\n    AssignExpr {\n        span: 1269..1273,\n        left: _,\n        op: Assign,\n        right: _,\n    },\n)",
    "Ident(\n    Ident {\n        span: 1291..1292,\n        sym: \"e\",\n    },\n)",
    "Assign(\n    AssignExpr {\n        span: 1289..1293,\n        left: _,\n        op: Assign,\n        right: _,\n    },\n)",
    "Ident(\n    Ident {\n        span: 1311..1312,\n        sym: \"f\",\n    },\n)",
    "Assign(\n    AssignExpr {\n        span: 1309..1313,\n        left: _,\n        op: Assign,\n        right: _,\n    },\n)",
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    "Assign(\n    AssignExpr {\n        span: 1329..1333,\n        left: _,\n        op: Assign,\n        right: _,\n    },\n)",
    "Ident(\n    Ident {\n        span: 1349..1350,\n        sym: \"d\",\n    },\n)",
    "Assign(\n    AssignExpr {\n        span: 1347..1351,\n        left: _,\n        op: Assign,\n        right: _,\n    },\n)",
    "Ident(\n    Ident {\n        span: 1369..1370,\n        sym: \"e\",\n    },\n)",
    "Assign(\n    AssignExpr {\n        span: 1367..1371,\n        left: _,\n        op: Assign,\n        right: _,\n    },\n)",
    "Ident(\n    Ident {\n        span: 1389..1390,\n        sym: \"f\",\n    },\n)",
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    "Ident(\n    Ident {\n        span: 1409..1410,\n        sym: \"a\",\n    },\n)",
    "Assign(\n    AssignExpr {\n        span: 1407..1411,\n        left: _,\n        op: Assign,\n        right: _,\n    },\n)",
    "Ident(\n    Ident {\n        span: 1426..1427,\n        sym: \"c\",\n    },\n)",
    "Assign(\n    AssignExpr {\n        span: 1424..1428,\n        left: _,\n        op: Assign,\n        right: _,\n    },\n)"
  ],
  "module_decls": [],
  "functions": [],
  "classes": [],
  "class_members": [],
  "jsx_elements": [],
  "ts_types": [
    "TypeRef(\n    TsTypeRef {\n        span: 333..343,\n        name: Ident {\n            span: 333..343,\n            sym: \"Base\",\n        },\n        type_args: [],\n    },\n)",
    "TypeRef(\n    TsTypeRef {\n        span: 477..482,\n        name: Ident {\n            span: 477..482,\n            sym: \"Base\",\n        },\n        type_args: [],\n    },\n)",
    "TypeRef(\n    TsTypeRef {\n        span: 522..530,\n        name: Ident {\n            span: 522..530,\n            sym: \"Derived\",\n        },\n        type_args: [],\n    },\n)",
    "TypeRef(\n    TsTypeRef {\n        span: 571..579,\n        name: Ident {\n            span: 571..579,\n            sym: \"Derived\",\n        },\n        type_args: [],\n    },\n)",
    "TypeRef(\n    TsTypeRef {\n        span: 899..909,\n        name: Ident {\n            span: 899..909,\n            sym: \"Base\",\n        },\n        type_args: [],\n    },\n)",
    "TypeRef(\n    TsTypeRef {\n        span: 1033..1038,\n        name: Ident {\n            span: 1033..1038,\n            sym: \"Base\",\n        },\n        type_args: [],\n    },\n)",
    "TypeRef(\n    TsTypeRef {\n        span: 1079..1087,\n        name: Ident {\n            span: 1079..1087,\n            sym: \"Derived\",\n        },\n        type_args: [],\n    },\n)",
    "TypeRef(\n    TsTypeRef {\n        span: 1127..1135,\n        name: Ident {\n            span: 1127..1135,\n            sym: \"Derived\",\n        },\n        type_args: [],\n    },\n)"
  ]
}
