src/vs/editor/contrib/suggest/browser/suggestModel.ts/SuggestModel/cancel
class SuggestModel:	cancel(retrigger: boolean = false): void {
		if (this._state !== State.Idle) {
			this._triggerQuickSuggest.cancel();
			this._requestToken?.cancel();
			this._requestToken = undefined;
			this._state = State.Idle;
			this._completionModel = undefined;
			this._context = undefined;
			this._onDidCancel.fire({ retrigger });
		}
	}