tsconfig.json

{
  "compilerOptions": {
    "moduleResolution": "node",
    "target": "es2017",
    "module": "commonjs",
    "strict": true,
    "sourceMap": true,
    "declaration": true,
    "allowSyntheticDefaultImports": true,
    "experimentalDecorators": true,
    "emitDecoratorMetadata": true,
    "esModuleInterop": true /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */ ,

    "declarationDir": "dist/types",
    "outDir": "dist/lib",
    "typeRoots": ["node_modules/@types"],
    /* Additional Checks */
    "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. */ ,

    /* Debugging Options */
    "traceResolution": false /* Report module resolution log messages. */ ,
    "listEmittedFiles": false /* Print names of generated files part of the compilation. */ ,
    "listFiles": false /* Print names of files part of the compilation. */ ,
    "pretty": true /* Stylize errors and messages using color and context. */ ,
    "lib": ["es2017", "dom"]
  },
  "include": ["src/**/*.ts"],
  "exclude": ["node_modules/**"],
  "compileOnSave": false
}