[
  {
    "analyzerName": "apiengine",
    "buggyFilePath": "API_CHANGE_INCOMPATIBLE_21.d.ts",
    "codeContextStaerLine": "2",
    "defectLevel": 2,
    "defectType": "API_CHANGE_INCOMPATIBLE_21",
    "description": "API check error of [api change errors]: Forbid changes: The function param type range is cannot be reduced.",
    "language": "typescript",
    "mainBuggyCode": "function testFun(a: number, b: string, c?: number): void;",
    "mainBuggyLine": "2",
    "extendInfo": {
      "apiName": "testFun",
      "apiType": "Method",
      "hierarchicalRelations": "API_CHANGE_INCOMPATIBLE_21.d.ts|Test|testFun",
      "parentModuleName": "testFun"
    }
  }
]