tsconfig.json

{
  "compilerOptions": {
    "module": "commonjs",
    "target": "es6",
    "strict": true,
    "alwaysStrict": false,
    "strictNullChecks": true,
    "strictFunctionTypes": true,
    "strictPropertyInitialization": true,
    "forceConsistentCasingInFileNames": true,
    "noFallthroughCasesInSwitch": true,
    "noImplicitAny": false,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "moduleResolution": "node",
    "sourceMap": true,
    "outDir": "dist",
    "baseUrl": "./",
    "paths": {
      "*": ["node_modules/*", "types/*"]
    },
    "declaration": true,
    "importHelpers": false,
    "listFiles": false,
    "traceResolution": false,
    "pretty": true,
    "skipLibCheck": true,
    "lib": ["es6"],
    "types": ["node", "jest"],
    "typeRoots": ["./node_modules/@types", "./types"]
  },
  "include": ["src/**/*.ts", "src/jest.config.js"],
  "compileOnSave": false,
  "exclude": ["node_modules/**"]
}