tsconfig.json

{
  "baseUrl": ".",
  "exclude": ["node_modules"],
  "types": ["googlemaps", "jest", "invariant", "react-dom", "eslint", "estree", "webpack"],
  "compilerOptions": {
    "module": "esnext",
    "moduleResolution": "node",
    "target": "es2015",
    "jsx": "react-jsx",
    "lib": ["dom"],
    "rootDir": "packages",
    "declaration": true,
    "declarationDir": "dist",
    "noEmit": true,
    "strict": true,
    "allowJs": false,
    "checkJs": false,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "noImplicitReturns": true,
    "noErrorTruncation": true,
    "noFallthroughCasesInSwitch": true,
    "noImplicitThis": true,
    "forceConsistentCasingInFileNames": true,
    "allowSyntheticDefaultImports": true,
    "esModuleInterop": false,
    "resolveJsonModule": true,
    "experimentalDecorators": true,
    "strictNullChecks": true,
    "noUncheckedIndexedAccess": true,
    "alwaysStrict": true,
    "noImplicitAny": true,
    "exactOptionalPropertyTypes": true,
    "noImplicitOverride": true,
    "pretty": true,
    "skipDefaultLibCheck": true,
    "skipLibCheck": true,
    "importsNotUsedAsValues": "error",
    "ignoreDeprecations": "5.0"
  }
}