tsconfig.json

{
    "compilerOptions": {
        "allowSyntheticDefaultImports": true,
        "esModuleInterop": true,
        "sourceMap": true,
        "resolveJsonModule": true,
        "outDir": "dist",
        "lib": [
            "es2015"
        ],
        "module": "commonjs",
        "declaration": true,
        "types": ["node", "mocha", "chai"],
        "strict": false
      },
      "exclude": ["node_modules", "examples", "dist", "test"],
    "ts-node": {
        // It is faster to skip typechecking.
        // Remove if you want ts-node to do typechecking.
        "transpileOnly": true,
        "files": true,
        "compilerOptions": {
            "allowSyntheticDefaultImports": true,
            "esModuleInterop": true,
            "sourceMap": true,
            "resolveJsonModule": true,
            "outDir": "dist",
            "types": ["node", "mocha", "chai"]
        }
    }
}