tsconfig.json

{
	"compilerOptions": {
		"target": "es2015",
		"module": "commonjs",
		"moduleResolution": "node",

		"rootDir": "src",
		"outDir": "out",

		"alwaysStrict": true,
		"forceConsistentCasingInFileNames": true,
		"noImplicitAny": true,
		"noImplicitReturns": true,
		"noImplicitThis": true,
		"noUnusedLocals": true,
		"noUnusedParameters": true,

		"emitDecoratorMetadata": true,
		"experimentalDecorators": true,
		"declaration": true,
		"importHelpers": true,

		"pretty": true
	}
}