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    "Decl(\n    _,\n)",
    "Decl(\n    _,\n)",
    "Decl(\n    _,\n)",
    "Decl(\n    _,\n)",
    "Decl(\n    _,\n)"
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    "TsInterface(\n    TsInterfaceDecl {\n        span: 1..76,\n        ident: Ident {\n            span: 11..15,\n            sym: \"Base\",\n        },\n        declare: false,\n        type_params: [],\n        extends: [],\n        body: [\n            TsTypeMember {\n                span: 22..65,\n                kind: Property,\n                name: Some(\n                    Ident(\n                        Ident {\n                            span: 22..23,\n                            sym: \"x\",\n                        },\n                    ),\n                ),\n                optional: false,\n                readonly: false,\n                params: [],\n                ty: Some(\n                    _,\n                ),\n            },\n        ],\n    },\n)",
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    "TsInterface(\n    TsInterfaceDecl {\n        span: 134..207,\n        ident: Ident {\n            span: 144..151,\n            sym: \"Derived\",\n        },\n        declare: false,\n        type_params: [],\n        extends: [\n            Ident {\n                span: 160..165,\n                sym: \"Base\",\n            },\n            Ident {\n                span: 166..173,\n                sym: \"Base2\",\n            },\n        ],\n        body: [\n            TsTypeMember {\n                span: 178..196,\n                kind: Property,\n                name: Some(\n                    Ident(\n                        Ident {\n                            span: 178..179,\n                            sym: \"x\",\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: 198..292,\n        ident: Ident {\n            span: 208..216,\n            sym: \"Derived2\",\n        },\n        declare: false,\n        type_params: [],\n        extends: [\n            Ident {\n                span: 225..230,\n                sym: \"Base\",\n            },\n            Ident {\n                span: 231..238,\n                sym: \"Base2\",\n            },\n        ],\n        body: [\n            TsTypeMember {\n                span: 252..281,\n                kind: Property,\n                name: Some(\n                    Ident(\n                        Ident {\n                            span: 252..253,\n                            sym: \"x\",\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: 283..359,\n        ident: Ident {\n            span: 293..301,\n            sym: \"Derived3\",\n        },\n        declare: false,\n        type_params: [],\n        extends: [\n            Ident {\n                span: 310..315,\n                sym: \"Base\",\n            },\n            Ident {\n                span: 316..323,\n                sym: \"Base2\",\n            },\n        ],\n        body: [\n            TsTypeMember {\n                span: 328..357,\n                kind: Property,\n                name: Some(\n                    Ident(\n                        Ident {\n                            span: 328..329,\n                            sym: \"x\",\n                        },\n                    ),\n                ),\n                optional: false,\n                readonly: false,\n                params: [],\n                ty: Some(\n                    _,\n                ),\n            },\n        ],\n    },\n)"
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  "exprs": [],
  "module_decls": [],
  "functions": [],
  "classes": [],
  "class_members": [],
  "jsx_elements": [],
  "ts_types": [
    "Keyword(\n    String,\n)",
    "Keyword(\n    String,\n)",
    "TypeLit(\n    TsTypeLit {\n        span: 25..65,\n        members: [\n            TsTypeMember {\n                span: 35..48,\n                kind: Property,\n                name: Some(\n                    Ident(\n                        Ident {\n                            span: 35..36,\n                            sym: \"a\",\n                        },\n                    ),\n                ),\n                optional: true,\n                readonly: false,\n                params: [],\n                ty: Some(\n                    _,\n                ),\n            },\n            TsTypeMember {\n                span: 47..63,\n                kind: Property,\n                name: Some(\n                    Ident(\n                        Ident {\n                            span: 47..48,\n                            sym: \"b\",\n                        },\n                    ),\n                ),\n                optional: false,\n                readonly: false,\n                params: [],\n                ty: Some(\n                    _,\n                ),\n            },\n        ],\n    },\n)",
    "Keyword(\n    String,\n)",
    "Keyword(\n    Number,\n)",
    "TypeLit(\n    TsTypeLit {\n        span: 92..132,\n        members: [\n            TsTypeMember {\n                span: 102..114,\n                kind: Property,\n                name: Some(\n                    Ident(\n                        Ident {\n                            span: 102..103,\n                            sym: \"b\",\n                        },\n                    ),\n                ),\n                optional: false,\n                readonly: false,\n                params: [],\n                ty: Some(\n                    _,\n                ),\n            },\n            TsTypeMember {\n                span: 113..130,\n                kind: Property,\n                name: Some(\n                    Ident(\n                        Ident {\n                            span: 113..114,\n                            sym: \"c\",\n                        },\n                    ),\n                ),\n                optional: true,\n                readonly: false,\n                params: [],\n                ty: Some(\n                    _,\n                ),\n            },\n        ],\n    },\n)",
    "Keyword(\n    String,\n)",
    "TypeLit(\n    TsTypeLit {\n        span: 181..196,\n        members: [\n            TsTypeMember {\n                span: 183..194,\n                kind: Property,\n                name: Some(\n                    Ident(\n                        Ident {\n                            span: 183..184,\n                            sym: \"b\",\n                        },\n                    ),\n                ),\n                optional: false,\n                readonly: false,\n                params: [],\n                ty: Some(\n                    _,\n                ),\n            },\n        ],\n    },\n)",
    "Keyword(\n    Number,\n)",
    "Keyword(\n    String,\n)",
    "TypeLit(\n    TsTypeLit {\n        span: 255..281,\n        members: [\n            TsTypeMember {\n                span: 257..269,\n                kind: Property,\n                name: Some(\n                    Ident(\n                        Ident {\n                            span: 257..258,\n                            sym: \"a\",\n                        },\n                    ),\n                ),\n                optional: false,\n                readonly: false,\n                params: [],\n                ty: Some(\n                    _,\n                ),\n            },\n            TsTypeMember {\n                span: 268..279,\n                kind: Property,\n                name: Some(\n                    Ident(\n                        Ident {\n                            span: 268..269,\n                            sym: \"b\",\n                        },\n                    ),\n                ),\n                optional: false,\n                readonly: false,\n                params: [],\n                ty: Some(\n                    _,\n                ),\n            },\n        ],\n    },\n)",
    "Keyword(\n    String,\n)",
    "Keyword(\n    String,\n)",
    "TypeLit(\n    TsTypeLit {\n        span: 331..357,\n        members: [\n            TsTypeMember {\n                span: 333..345,\n                kind: Property,\n                name: Some(\n                    Ident(\n                        Ident {\n                            span: 333..334,\n                            sym: \"a\",\n                        },\n                    ),\n                ),\n                optional: false,\n                readonly: false,\n                params: [],\n                ty: Some(\n                    _,\n                ),\n            },\n            TsTypeMember {\n                span: 344..355,\n                kind: Property,\n                name: Some(\n                    Ident(\n                        Ident {\n                            span: 344..345,\n                            sym: \"b\",\n                        },\n                    ),\n                ),\n                optional: false,\n                readonly: false,\n                params: [],\n                ty: Some(\n                    _,\n                ),\n            },\n        ],\n    },\n)"
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