49 files declare their use of StorageInterface

AllowListConfigStorage.php in core/lib/Drupal/Core/Recipe/AllowListConfigStorage.php
CacheabilityMetadataConfigOverride.php in core/modules/config/tests/config_override_integration_test/src/CacheabilityMetadataConfigOverride.php
CheckpointStorage.php in core/lib/Drupal/Core/Config/Checkpoint/CheckpointStorage.php
CheckpointStorageInterface.php in core/lib/Drupal/Core/Config/Checkpoint/CheckpointStorageInterface.php
CheckpointStorageTest.php in core/tests/Drupal/Tests/Core/Config/Checkpoint/CheckpointStorageTest.php
ConfigActionManager.php in core/lib/Drupal/Core/Config/Action/ConfigActionManager.php
ConfigAfterInstallerTestBase.php in core/tests/Drupal/FunctionalTests/Installer/ConfigAfterInstallerTestBase.php
ConfigConfigurator.php in core/lib/Drupal/Core/Recipe/ConfigConfigurator.php
ConfigController.php in core/modules/config/src/Controller/ConfigController.php
ConfigImportForm.php in core/modules/config/src/Form/ConfigImportForm.php
ConfigImportModuleUninstallValidatorInterface.php in core/lib/Drupal/Core/Extension/ConfigImportModuleUninstallValidatorInterface.php
ConfigInstallWebTest.php in core/modules/config/tests/src/Functional/ConfigInstallWebTest.php
ConfigOverride.php in core/lib/Drupal/Core/Installer/ConfigOverride.php
ConfigOverrider.php in core/modules/settings_tray/tests/modules/settings_tray_override_test/src/ConfigOverrider.php
ConfigOverrider.php in core/modules/config/tests/config_entity_static_cache_test/src/ConfigOverrider.php
ConfigOverrider.php in core/modules/config/tests/config_override_test/src/ConfigOverrider.php
ConfigOverriderLowPriority.php in core/modules/config/tests/config_override_test/src/ConfigOverriderLowPriority.php
ConfigSchemaChecker.php in core/lib/Drupal/Core/Config/Development/ConfigSchemaChecker.php
ConfigSchemaDiscovery.php in core/lib/Drupal/Core/Config/Schema/ConfigSchemaDiscovery.php
ConfigSingleExportForm.php in core/modules/config/src/Form/ConfigSingleExportForm.php
ConfigSingleImportForm.php in core/modules/config/src/Form/ConfigSingleImportForm.php
ConfigSnapshotSubscriber.php in core/lib/Drupal/Core/EventSubscriber/ConfigSnapshotSubscriber.php
ConfigSync.php in core/modules/config/src/Form/ConfigSync.php
ConfigTestTrait.php in core/tests/Drupal/Tests/ConfigTestTrait.php
DefaultConfigTest.php in core/tests/Drupal/KernelTests/Config/DefaultConfigTest.php
DemoUmamiProfileTest.php in core/profiles/demo_umami/tests/src/Functional/DemoUmamiProfileTest.php
EventSubscriber.php in core/modules/config/tests/config_transformer_test/src/EventSubscriber.php
ExcludedModulesEventSubscriber.php in core/lib/Drupal/Core/EventSubscriber/ExcludedModulesEventSubscriber.php
ExtensionInstallStorageTest.php in core/tests/Drupal/Tests/Core/Config/ExtensionInstallStorageTest.php
FieldUninstallValidator.php in core/modules/field/src/FieldUninstallValidator.php
FunctionalTestSetupTrait.php in core/lib/Drupal/Core/Test/FunctionalTestSetupTrait.php
LanguageConfigFactoryOverride.php in core/modules/language/src/Config/LanguageConfigFactoryOverride.php
LanguageConfigOverride.php in core/modules/language/src/Config/LanguageConfigOverride.php
LocaleConfigManager.php in core/modules/locale/src/LocaleConfigManager.php
LocaleDefaultConfigStorage.php in core/modules/locale/src/LocaleDefaultConfigStorage.php
ModuleRequiredByThemesUninstallValidator.php in core/lib/Drupal/Core/Extension/ModuleRequiredByThemesUninstallValidator.php
NullStorageTest.php in core/tests/Drupal/Tests/Core/Config/NullStorageTest.php
PirateDayCacheabilityMetadataConfigOverride.php in core/modules/config/tests/config_override_test/src/PirateDayCacheabilityMetadataConfigOverride.php
ReadOnlyStorageTest.php in core/tests/Drupal/Tests/Core/Config/ReadOnlyStorageTest.php
RecipeConfigInstaller.php in core/lib/Drupal/Core/Recipe/RecipeConfigInstaller.php
RecipeConfigStorageWrapper.php in core/lib/Drupal/Core/Recipe/RecipeConfigStorageWrapper.php
RecipeConfigStorageWrapperTest.php in core/tests/Drupal/Tests/Core/Recipe/RecipeConfigStorageWrapperTest.php
RecipeExtensionConfigStorage.php in core/lib/Drupal/Core/Recipe/RecipeExtensionConfigStorage.php
RecipeOverrideConfigStorage.php in core/lib/Drupal/Core/Recipe/RecipeOverrideConfigStorage.php
RecipeRunner.php in core/lib/Drupal/Core/Recipe/RecipeRunner.php
StorageComparerTest.php in core/tests/Drupal/Tests/Core/Config/StorageComparerTest.php
StorageCopyTraitTest.php in core/tests/Drupal/Tests/Core/Config/StorageCopyTraitTest.php
StorageReplaceDataWrapper.php in core/modules/config/src/StorageReplaceDataWrapper.php
StorageReplaceDataWrapperTest.php in core/tests/Drupal/KernelTests/Core/Config/Storage/StorageReplaceDataWrapperTest.php

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