tsconfig.json

{
  "compilerOptions": {
    "target": "ES2018",
    "module": "commonjs",
    "lib": ["es2018", "esnext.asynciterable", "dom"],
    "allowJs": false,
    "noEmitOnError": true,
    "sourceMap": true,
    "outDir": "dist",
    "rootDir": "src",
    "skipLibCheck": true,
    "removeComments": false,
    "noEmit": false,
    "importHelpers": false,
    "preserveWatchOutput": true,

    "strict": true,
    "noImplicitAny": true,
    "strictNullChecks": true,

    "noUnusedLocals": false,
    "noUnusedParameters": false,
    "noFallthroughCasesInSwitch": true,

    "moduleResolution": "node",
    "baseUrl": "./",
    "allowSyntheticDefaultImports": true,
    "esModuleInterop": true,
    "preserveConstEnums": true,
    "forceConsistentCasingInFileNames": true,

    "typeRoots": ["./src/types", "./node_modules/@types"]
  },
  "include": ["src"],
  "exclude": ["node_modules"]
}