Ordered list of CacheBackendInterface instances. Type:

public NullBackend::deleteMultiple(array $cids)

public BackendChain::garbageCollection() Performs

public static Cache::mergeTags(array $a = [], array $b = [])

public MemoryBackend::deleteAll() Deletes

public ChainedFastBackend::invalidate($cid)

public BackendChain::prependBackend(CacheBackendInterface $backend)

public ChainedFastBackend::get($cid, $allow_invalid = FALSE)

public CacheableResponseTrait::addCacheableDependenc

Defines the CookiesCacheContext service, for "per cookie" caching. Cache context ID: 'cookies' (to vary by all cookies). Calculated cache context