extensions/typescript-language-features/src/experimentationService.ts/ExperimentationService/constructor
class ExperimentationService:	constructor(telemetryReporter: IExperimentationTelemetryReporter, id: string, version: string, globalState: vscode.Memento) {
		this._telemetryReporter = telemetryReporter;
		this._experimentationServicePromise = createExperimentationService(this._telemetryReporter, id, version, globalState);
	}