tsconfig.json

{
  "compilerOptions": {
    "target": "ES5",
    "module": "CommonJS",
    "moduleResolution": "node",

    "allowSyntheticDefaultImports": true,
    "declaration": true,
    "declarationMap": true,
    "esModuleInterop": true,
    "forceConsistentCasingInFileNames": true,
    "noEmitOnError": true,
    "noFallthroughCasesInSwitch": true,
    "noImplicitAny": true,
    "noImplicitOverride": true,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noPropertyAccessFromIndexSignature": false,
    "noUncheckedIndexedAccess": false,
    "resolveJsonModule": true,
    "skipLibCheck": true,
    "sourceMap": true,
    "strict": true,
    "useDefineForClassFields": true,

    "outDir": "./lib",
    "baseUrl": "src",
    "paths": {
      "@/*": ["*"]
    }
  },
  "include": ["src/**/*.ts", "test/**/*.ts"]
}