tsconfig.json

{
  "compilerOptions": {
    "target": "es2017",
    "lib": ["es6"],
    "jsx": "react-native",
    "strict": true,
    "noImplicitAny": true,
    "strictNullChecks": true,
    "strictFunctionTypes": true,
    "strictPropertyInitialization": true,
    "noImplicitThis": true,
    "alwaysStrict": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "noImplicitReturns": true,
    "noFallthroughCasesInSwitch": true,
    "forceConsistentCasingInFileNames": true,
    "moduleResolution": "node",
    "allowSyntheticDefaultImports": true,
    "types": ["react", "react-native", "jest"],
    "skipLibCheck": true
  },
  "files": ["src/index.d.ts", "src/__tests__/index.ts", "src/v1/__tests__/index.ts", "src/v1/index.ts"],
  "include": ["src/index.ts", "node_modules/@types/jest"]
}