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  "type": "Program",
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      "body": {
        "type": "TSInterfaceBody",
        "body": [
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              "typeAnnotation": {
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          },
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                      "column": 15
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                      "column": 17
                    },
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                      "column": 22
                    }
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    },
    "end": {
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    }
  }
}
TypeError: Type 'string' is not assignable to type 'number'. [interfaceAssignment6.ts:22:14]