tsconfig.json

{
  "compilerOptions": {
    "outDir": "./build/",
    "target": "es6",
    "module": "es2015",
    "moduleResolution": "node",
    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true,
    "declaration": true,
    "forceConsistentCasingInFileNames": false,
    "sourceMap": true,
    "inlineSources": true,
    "isolatedModules": false,
    "noImplicitAny": true,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noUnusedLocals": true,
    "preserveConstEnums": true,
    "removeComments": false,
    "strictFunctionTypes": false,
    "strictNullChecks": false,
    "suppressImplicitAnyIndexErrors": true,
    "importHelpers": true,
    "resolveJsonModule": true,
    "typeRoots": ["./node_modules/@types", "./typings"]
  },
  "files": ["src/index.ts"],
  "include": ["src/**/*.ts", "test/**/*.ts", "test-runtime/**/*.ts"]
}