tsconfig.json

{
	"compilerOptions": {
		"target": "es2017",
		"module": "commonjs",
		"moduleResolution": "node",
		"resolveJsonModule": true,

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

		"strict": true,
		"alwaysStrict": true,
		"strictBindCallApply": true,
		"strictFunctionTypes": true,
		"strictNullChecks": true,
		"strictPropertyInitialization": true,
		"noImplicitAny": true,
		"noImplicitReturns": true,
		"noImplicitThis": true,
		"noUnusedLocals": true,
		"noUnusedParameters": true,
		"noPropertyAccessFromIndexSignature": true,
		"noUncheckedIndexedAccess": true,

		"noFallthroughCasesInSwitch": true,
		"forceConsistentCasingInFileNames": true,
		"importsNotUsedAsValues": "error",

		"emitDecoratorMetadata": true,
		"experimentalDecorators": true,
		"downlevelIteration": true,
		"declaration": true,
		"stripInternal": true,

		"pretty": true
	}
}