endDeferredEmit(resultingSelection = null) {
        this._deferredCnt--;
        if (this._deferredCnt === 0) {
            if (this._deferredEvent !== null) {
                this._deferredEvent.rawContentChangedEvent.resultingSelection = resultingSelection;
                const e = this._deferredEvent;
                this._deferredEvent = null;
                this._fastEmitter.fire(e);
                this._slowEmitter.fire(e);
            }
        }
    }
Both `fastEvent` and `slowEvent` work the same way and contain the same events, but first we invoke `fastEvent` and then `slowEvent`.