tsconfig.json

{
  "input": "./lib/index.ts",
  "compilerOptions": {
    "declaration": true,
    "declarationDir": "./lib",
    "forceConsistentCasingInFileNames": true,
    "module": "commonjs",
    "esModuleInterop": true,
    "target": "es5",
    "moduleResolution": "node",
    "sourceMap": true,
    "outDir": "./dist",
    "allowSyntheticDefaultImports": true,
    "noImplicitAny": true,
    "removeComments": true,
    "preserveConstEnums": true,
  },
  "lib": ["es5"],
  "include": ["lib/**/*"],
  "exclude": ["node_modules", "dist/**/*", "rollup.config.js"]
}