tsconfig.json

{
 "compilerOptions": {
 "declaration": true,
 "importHelpers": true,
 "module": "commonjs",
 "outDir": "lib",
 "rootDir": "src",
 "strict": true,
 "target": "es2017",
 "esModuleInterop": true,
 "skipLibCheck": true,
 // The composite option enforces certain constraints which make it possible for build tools
 // (including TypeScript itself, under --build mode) to quickly determine if a project has been built
 "composite": true,
 "noUnusedLocals": true,
 "noUnusedParameters": true,
 "forceConsistentCasingInFileNames": true,
 "resolveJsonModule": true
 },
 "include": [
 "src/**/*",
 "src/**/*.json"
 ]
}