tsconfig.json

{
  "compilerOptions": {
    /* Language and Environment */
    "target": "es2016",
    /* Modules */
    "module": "commonjs",
    // "rootDir": "./",                                  /* Specify the root folder within your source files. */
    // "moduleResolution": "node10",                     /* Specify how TypeScript looks up a file from a given module specifier. */
    // "baseUrl": "./",                                  /* Specify the base directory to resolve non-relative module names. */
    // "paths": {},                                      /* Specify a set of entries that re-map imports to additional lookup locations. */
    // "rootDirs": [],                                   /* Allow multiple folders to be treated as one when resolving modules. */
    "typeRoots": ["./node_modules/@types", "./types", "./__tests__/types"],
    "types": ["jest", "node"],
    /* JavaScript Support */
    "allowJs": true,
    /* Emit */
    "esModuleInterop": true,
    "forceConsistentCasingInFileNames": true,
    /* Type Checking */
    "strict": true,
    /* Completeness */
    // "skipDefaultLibCheck": true,                      /* Skip type checking .d.ts files that are included with TypeScript. */
    "skipLibCheck": true /* Skip type checking all .d.ts files. */
  }
}