lsif-node/tsconfig.base.json

{
	"compilerOptions": {
		"module": "commonjs",
		"target": "es6",
        "noImplicitAny": true,
		"noImplicitReturns": true,
		"noUnusedLocals": true,
		"strict": true,
		"lib": [
			"es6"
		]
	}
}