tsconfig.json

{
    "compilerOptions": {
        "baseUrl": ".",
        "rootDir": "src/",
        "outDir": "lib/",
        "module": "commonjs",
        "target": "es2017",
        "sourceMap": false,
        "allowJs": false,
        "moduleResolution": "node",
        "forceConsistentCasingInFileNames": true,
        "noImplicitReturns": true,
        "noImplicitThis": true,
        "noImplicitAny": false,
        "strictNullChecks": true,
        "suppressImplicitAnyIndexErrors": true,
        "noUnusedLocals": false,
        "importHelpers": true,
        "esModuleInterop": true,
        "declaration": true,
        "downlevelIteration": true,
        "resolveJsonModule": true,
        "types": [
            "node"
        ]
    },
    "exclude": [
        "node_modules",
        "public",
        "build",
        "scripts",
        "acceptance-tests",
        "src/setupTests.ts",
        "test/",
        "test-data/"
    ]
}