8 methods override StorageInterface::readMultiple()

CachedStorage::readMultiple in core/lib/Drupal/Core/Config/CachedStorage.php
DatabaseStorage::readMultiple in core/lib/Drupal/Core/Config/DatabaseStorage.php
FileStorage::readMultiple in core/lib/Drupal/Core/Config/FileStorage.php
ManagedStorage::readMultiple in core/lib/Drupal/Core/Config/ManagedStorage.php
MemoryStorage::readMultiple in core/lib/Drupal/Core/Config/MemoryStorage.php
NullStorage::readMultiple in core/lib/Drupal/Core/Config/NullStorage.php
ReadOnlyStorage::readMultiple in core/lib/Drupal/Core/Config/ReadOnlyStorage.php
StorageReplaceDataWrapper::readMultiple in core/modules/config/src/StorageReplaceDataWrapper.php
Reads configuration data from the storage.

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.