tsconfig.json

{
  "compilerOptions": {
    "target": "ES2020", /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', 'ES2021', or 'ESNEXT'. */
    "module": "commonjs", /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', 'es2020', or 'ESNext'. */
    "outDir": "dist", /* Redirect output structure to the directory. */
    "importHelpers": true, /* Import emit helpers from 'tslib'. */
    "strict": true, /* Enable all strict type-checking options. */
    "alwaysStrict": true, /* Parse in strict mode and emit "use strict" for each source file. */
    "moduleResolution": "node", /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
    "baseUrl": ".", /* Base directory to resolve non-absolute module names. */
    "experimentalDecorators": true, /* Enables experimental support for ES7 decorators. */
    "emitDecoratorMetadata": true, /* Enables experimental support for emitting type metadata for decorators. */
    "allowJs": true,
    "sourceMap": false, /* sourceMaps are enabled so you’ll be able to use node’s DevTools integration to view TypeScript sources alongside your JavaScript */
    "strictNullChecks": true,
    "declaration": true,
    //"emitDeclarationOnly": true,
    "esModuleInterop": true,
    //"declarationDir": "./types",
    "forceConsistentCasingInFileNames": true, /* Disallow inconsistently-cased references to the same file. */
  },
  "include": [
    "src/**/*"
  ],
  "exclude": [
    "test/**/*",
    "node_modules/**/*",
    "types/**/*"
  ]
}