extensions/typescript-language-features/src/utils/typingsStatus.ts/TypingsStatus/onEndInstallTypings
class TypingsStatus:	private onEndInstallTypings(eventId: number): void {
		const timer = this._acquiringTypings.get(eventId);
		if (timer) {
			clearTimeout(timer);
		}
		this._acquiringTypings.delete(eventId);
	}