code: function () {
                                      if (slot) {
                                          slotNext = slot.next;
                                          firstInSequence = slot.firstInSequence;
                                          lastInSequence = slot.lastInSequence;
  
                                          updateNewIndices(slot, -1);
                                          deleteSlot(slot, false);
                                      }
                                  }
docs: updateSlots