tsconfig.json

{
    "compilerOptions": {
      /* Language and Environment */
      "target": "es2017",                                     /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
      /* Modules */
      "module": "CommonJS",                                /* Specify what module code is generated. */
      "typeRoots": ["./node_modules/@types", "./types"],   /* Specify multiple folders that act like './node_modules/@types'. */
      /* Interop Constraints */
      "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. */
    },
    "include": ["src/**/*.ts"]
  }