tsconfig.json

{
    "compilerOptions": {
        "target": "es2016",
        "module": "commonjs",
        "baseUrl": ".",
        "outDir": "lib",
        "rootDirs": ["./src"],
        "suppressImplicitAnyIndexErrors": true,
        "resolveJsonModule": true,
        "esModuleInterop": true,
        "forceConsistentCasingInFileNames": true,
        "strict": true,
        "sourceMap": true,
        "declaration": true,
        "noImplicitAny": true,
        "strictNullChecks": true,
        "strictFunctionTypes": true,
        "strictBindCallApply": true,
        "strictPropertyInitialization": true,
        "noImplicitThis": true,
        "alwaysStrict": true,
        "noUnusedLocals": true,
        "noUnusedParameters": true,
        "noImplicitReturns": true,
        "noFallthroughCasesInSwitch": true,
    },
    "typeRoots": [
        "./node_modules/@types"
    ],
    "exclude": [
        "node_modules"
    ],
    "include": [
        "./src/**/*.ts",
        "./src/**/*.json",
    ]
}