// so we don't have to be choosy about our key.
			AddFunc: func(obj interface{}) {
				c.queue.Add(c.keyFn())
			},
			UpdateFunc: func(oldObj, newObj interface{}) {
				c.queue.Add(c.keyFn())
			},
			DeleteFunc: func(obj interface{}) {
				c.queue.Add(c.keyFn())
			},
		},
	})

	return c, nil
}

func (c *ConfigMapCAController) keyFn() string {

		),
	}
	logger := klog.FromContext(ctx)
	leaseInformer.Informer().AddEventHandler(cache.ResourceEventHandlerFuncs{
		DeleteFunc: func(obj interface{}) {
			c.onDeleteLease(logger, obj)
		},
	})
	// use the default resync period from the informer
	storageVersionInformer.Informer().AddEventHandler(cache.ResourceEventHandlerFuncs{

		AddFunc: func(obj interface{}) {
			ttlc.addNode(logger, obj)
		},
		UpdateFunc: func(old, newObj interface{}) {
			ttlc.updateNode(logger, old, newObj)
		},
		DeleteFunc: ttlc.deleteNode,
	})

	ttlc.nodeStore = listers.NewNodeLister(nodeInformer.Informer().GetIndexer())
	ttlc.hasSynced = nodeInformer.Informer().HasSynced

	return ttlc
}

type ttlBoundary struct {

		specsByName: map[string]*specCache{},
	}

	crdInformer.Informer().AddEventHandler(cache.ResourceEventHandlerFuncs{
		AddFunc:    c.addCustomResourceDefinition,
		UpdateFunc: c.updateCustomResourceDefinition,
		DeleteFunc: c.deleteCustomResourceDefinition,
	})

	c.syncFn = c.sync
	return c
}

// Run sets openAPIAggregationManager and starts workers

			// so we don't have to be choosy about our key.
			AddFunc: func(obj interface{}) {
				c.queue.Add(c.keyFn())
			},
			UpdateFunc: func(oldObj, newObj interface{}) {
				c.queue.Add(c.keyFn())
			},
			DeleteFunc: func(obj interface{}) {
				c.queue.Add(c.keyFn())
			},
		},
	})

	c.configmapLister = corev1listers.NewConfigMapLister(c.configmapInformer.GetIndexer()).ConfigMaps(c.configmapNamespace)

		),
	}

	crdInformer.Informer().AddEventHandler(cache.ResourceEventHandlerFuncs{
		AddFunc:    c.addCustomResourceDefinition,
		UpdateFunc: c.updateCustomResourceDefinition,
		DeleteFunc: c.deleteCustomResourceDefinition,
	})

	c.syncFn = c.sync

	return c
}

func (c *DiscoveryController) sync(version schema.GroupVersion) error {

	crdInformer.Informer().AddEventHandler(cache.ResourceEventHandlerFuncs{
		AddFunc:    c.addCustomResourceDefinition,
		UpdateFunc: c.updateCustomResourceDefinition,
		DeleteFunc: c.deleteCustomResourceDefinition,
	})

	c.syncFn = c.sync

	return c
}

func (c *NamingConditionController) getAcceptedNamesForGroup(group string) (allResources sets.String, allKinds sets.String) {

	if informer != nil {
		// Cannot fail in practice?! No-one bothers checking the error.
		_, _ = informer.AddEventHandler(
			cache.ResourceEventHandlerFuncs{
				AddFunc:    c.add,
				UpdateFunc: c.update,
				DeleteFunc: c.delete,
			},
		)
	}
	return c
}

func (c *AssumeCache) add(obj interface{}) {
	if obj == nil {
		return
	}

	name, err := cache.MetaNamespaceKeyFunc(obj)
	if err != nil {

			AddFunc:    func(obj interface{}) { controller.enqueueWork(ctx, controller.volumeQueue, obj) },
			UpdateFunc: func(oldObj, newObj interface{}) { controller.enqueueWork(ctx, controller.volumeQueue, newObj) },
			DeleteFunc: func(obj interface{}) { controller.enqueueWork(ctx, controller.volumeQueue, obj) },
		},
	)
	controller.volumeLister = p.VolumeInformer.Lister()
	controller.volumeListerSynced = p.VolumeInformer.Informer().HasSynced

				event := &event{
					eventType: updateEvent,
					obj:       newObj,
					oldObj:    oldObj,
					gvr:       resource,
				}
				qm.resourceChanges.Add(event)
			}
		},
		DeleteFunc: func(obj interface{}) {
			// delta fifo may wrap the object in a cache.DeletedFinalStateUnknown, unwrap it
			if deletedFinalStateUnknown, ok := obj.(cache.DeletedFinalStateUnknown); ok {
				obj = deletedFinalStateUnknown.Obj