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{  "compilerOptions": {    "target": "ESNext" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'. */,    "module": "ESNext" /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */,    "strict": true /* Enable all strict type-checking options. */,    "noUnusedLocals": true /* Report errors on unused locals. */,    "noUnusedParameters": true /* Report errors on unused parameters. */,    "noImplicitReturns": true /* Report error when not all code paths in function return a value. */,    "noFallthroughCasesInSwitch": true /* Report errors for fallthrough cases in switch statement. */,    "experimentalDecorators": true /* Enables experimental support for ES7 decorators. */,    "emitDecoratorMetadata": true /* Enables experimental support for emitting type metadata for decorators. */  }}