tsconfig.json

{
  "compilerOptions": {
    "outDir": "./dist" /* Redirect output structure to the directory. */,
    "allowJs": true /* Allow javascript files to be compiled. */,
    "target": "es6" /* Set the JavaScript language version for emitted JavaScript. */,
    "module": "commonjs" /* Specify what module code is generated. */,
    "moduleResolution": "node" /* Specify how TypeScript looks up a file from a given module specifier. */,
    "esModuleInterop": true /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. */,
    "strict": true /* Enable all strict type-checking options. */,
    "forceConsistentCasingInFileNames": true /* Disallow inconsistently-cased references to the same file. */,
    "alwaysStrict": true /* Parse in strict mode and emit "use strict" for each source file. */,
    "typeRoots": [
      "./node_modules/@types",
      "./types"
    ] /* List of folders to include type definitions from. */
  },
  "include": ["./src/**/*"],
  "exclude": ["./src/__tests__"],
  "typeRoots": [
    "./node_modules/@types",
    "./types"
  ] /* List of folders to include type definitions from. */
}