tsconfig.json

{
  "compilerOptions": {
    "target": "es5",                    
    "outDir": "lib",
    "sourceMap": false,
    "module": "commonjs",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', 'es2020', or 'ESNext'. */
    "moduleResolution": "node",    
    /* Strict Type-Checking Options */
    "strict": true,                           /* Enable all strict type-checking options. */

    "esModuleInterop": true,                  /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
    "typeRoots": [
      "./node_modules/@types/"
    ],
    "declaration": true,
    "declarationDir": "types",
    /* Advanced Options */
    "skipLibCheck": true,                     /* Skip type checking of declaration files. */
    "forceConsistentCasingInFileNames": true  /* Disallow inconsistently-cased references to the same file. */
  },
  "include": [
      "src/**/*"
   ]
}