tsconfig.json

{
  "compilerOptions": {
    /* Language and Environment */
    "target": "ESNext" /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */,
    /* Modules */
    "module": "ESNext" /* Specify what module code is generated. */,
    /* Specify the root folder within your source files. */
    "moduleResolution": "node10" /* Specify how TypeScript looks up a file from a given module specifier. */,
    /* Emit */
    "declaration": true /* Generate .d.ts files from TypeScript and JavaScript files in your project. */,
    "outDir": "./dist" /* Specify an output folder for all emitted files. */,
    "declarationDir": "./dist" /* Specify the output directory for generated declaration files. */,
    "esModuleInterop": true /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables 'allowSyntheticDefaultImports' for type compatibility. */,
    "forceConsistentCasingInFileNames": true /* Ensure that casing is correct in imports. */,
    /* Type Checking */
    "strict": true /* Enable all strict type-checking options. */,
    "skipLibCheck": true /* Skip type checking all .d.ts files. */
  },
  "include": ["./src/**/*.ts", "./*.ts", "./types/*.ts", "__test__"]
}