113 files declare their use of NestedArray

admin.inc in core/modules/views_ui/admin.inc
Provides the Views' administrative interface.
ArgumentPluginBase.php in core/modules/views/src/Plugin/views/argument/ArgumentPluginBase.php
AssetResolver.php in core/lib/Drupal/Core/Asset/AssetResolver.php
Attribute.php in core/lib/Drupal/Core/Template/Attribute.php
AttributeHelper.php in core/lib/Drupal/Core/Template/AttributeHelper.php
BlockPluginTrait.php in core/lib/Drupal/Core/Block/BlockPluginTrait.php
BubbleableMetadata.php in core/lib/Drupal/Core/Render/BubbleableMetadata.php
CKEditor5.php in core/modules/ckeditor5/src/Plugin/Editor/CKEditor5.php
CKEditor5PluginManager.php in core/modules/ckeditor5/src/Plugin/CKEditor5PluginManager.php
claro.theme in core/themes/claro/claro.theme
Functions to support theming in the Claro theme.
ClientFactory.php in core/lib/Drupal/Core/Http/ClientFactory.php
CommentExtrasTest.php in core/modules/jsonapi/tests/src/Functional/CommentExtrasTest.php
CommentLinkBuilder.php in core/modules/comment/src/CommentLinkBuilder.php
CommentTest.php in core/modules/jsonapi/tests/src/Functional/CommentTest.php
CommonCollectionFilterAccessTestPatternsTrait.php in core/modules/jsonapi/tests/src/Traits/CommonCollectionFilterAccessTestPatternsTrait.php
Config.php in core/lib/Drupal/Core/Config/Config.php
ConfigBase.php in core/lib/Drupal/Core/Config/ConfigBase.php
ConfigEntityBase.php in core/lib/Drupal/Core/Config/Entity/ConfigEntityBase.php
ConfigEntityDependency.php in core/lib/Drupal/Core/Config/Entity/ConfigEntityDependency.php
ConfigEntityValidationTestBase.php in core/tests/Drupal/KernelTests/Core/Config/ConfigEntityValidationTestBase.php
ConfigFactory.php in core/lib/Drupal/Core/Config/ConfigFactory.php
ConfigInstaller.php in core/lib/Drupal/Core/Config/ConfigInstaller.php
ConfigModuleOverridesEvent.php in core/lib/Drupal/Core/Config/ConfigModuleOverridesEvent.php
ConfigTarget.php in core/lib/Drupal/Core/Form/ConfigTarget.php
ConfigurableLanguageTest.php in core/modules/jsonapi/tests/src/Functional/ConfigurableLanguageTest.php
ConfigurableSearchPluginBase.php in core/modules/search/src/Plugin/ConfigurableSearchPluginBase.php
DateElementBase.php in core/lib/Drupal/Core/Datetime/Element/DateElementBase.php
Datelist.php in core/lib/Drupal/Core/Datetime/Element/Datelist.php
Datetime.php in core/lib/Drupal/Core/Datetime/Element/Datetime.php
DefaultPluginManager.php in core/lib/Drupal/Core/Plugin/DefaultPluginManager.php
DefaultsSectionStorage.php in core/modules/layout_builder/src/Plugin/SectionStorage/DefaultsSectionStorage.php
DisplayModeLocalAction.php in core/modules/field_ui/src/DisplayModeLocalAction.php
EntityConfigBase.php in core/modules/migrate/src/Plugin/migrate/destination/EntityConfigBase.php
EntityDisplayModeListBuilder.php in core/modules/field_ui/src/EntityDisplayModeListBuilder.php
EntityResourceTestBase.php in core/modules/rest/tests/src/Functional/EntityResource/EntityResourceTestBase.php
EntityTestViewsData.php in core/modules/system/tests/modules/entity_test/src/EntityTestViewsData.php
EntityViewDisplay.php in core/lib/Drupal/Core/Entity/Entity/EntityViewDisplay.php
EntityViewsData.php in core/modules/views/src/EntityViewsData.php
Extract.php in core/modules/migrate/src/Plugin/migrate/process/Extract.php
FieldBlock.php in core/modules/layout_builder/src/Plugin/Block/FieldBlock.php
FieldDefinitionIntegrityTest.php in core/modules/field/tests/src/Kernel/FieldDefinitionIntegrityTest.php
FieldResolver.php in core/modules/jsonapi/src/Context/FieldResolver.php
file.module in core/modules/file/file.module
Defines a "managed_file" Form API field and a "file" field for Field module.
FileTest.php in core/modules/jsonapi/tests/src/Functional/FileTest.php
FileUploadResourceTestBase.php in core/modules/rest/tests/src/Functional/FileUploadResourceTestBase.php
FileUploadTest.php in core/modules/jsonapi/tests/src/Functional/FileUploadTest.php
FileWidget.php in core/modules/file/src/Plugin/Field/FieldWidget/FileWidget.php
FilterPluginCollection.php in core/modules/filter/src/FilterPluginCollection.php
FormBuilder.php in core/lib/Drupal/Core/Form/FormBuilder.php
FormBuilderTest.php in core/tests/Drupal/Tests/Core/Form/FormBuilderTest.php
FormErrorHandler.php in core/lib/Drupal/Core/Form/FormErrorHandler.php
FormState.php in core/lib/Drupal/Core/Form/FormState.php
FormStateValuesTrait.php in core/lib/Drupal/Core/Form/FormStateValuesTrait.php
FormValidator.php in core/lib/Drupal/Core/Form/FormValidator.php
InlineBlock.php in core/modules/layout_builder/src/Plugin/Block/InlineBlock.php
LayoutBuilderHtmlEntityFormController.php in core/modules/layout_builder/src/Controller/LayoutBuilderHtmlEntityFormController.php
LayoutBuilderRoutesTrait.php in core/modules/layout_builder/src/Routing/LayoutBuilderRoutesTrait.php
LayoutDefault.php in core/lib/Drupal/Core/Layout/LayoutDefault.php
LayoutRestTestBase.php in core/modules/layout_builder/tests/src/Functional/Rest/LayoutRestTestBase.php
LibraryDiscoveryCollector.php in core/lib/Drupal/Core/Asset/LibraryDiscoveryCollector.php
LibraryDiscoveryParser.php in core/lib/Drupal/Core/Asset/LibraryDiscoveryParser.php
Link.php in core/lib/Drupal/Core/Render/Element/Link.php
ListItemBase.php in core/modules/options/src/Plugin/Field/FieldType/ListItemBase.php
LocaleConfigManager.php in core/modules/locale/src/LocaleConfigManager.php
MachineName.php in core/lib/Drupal/Core/Render/Element/MachineName.php
ManagedFile.php in core/modules/file/src/Element/ManagedFile.php
Mapping.php in core/lib/Drupal/Core/Config/Schema/Mapping.php
MediaLibraryWidget.php in core/modules/media_library/src/Plugin/Field/FieldWidget/MediaLibraryWidget.php
MediaResourceTestBase.php in core/modules/media/tests/src/Functional/Rest/MediaResourceTestBase.php
MediaSourceBase.php in core/modules/media/src/MediaSourceBase.php
MenuForm.php in core/modules/menu_ui/src/MenuForm.php
MenuLinkContentTest.php in core/modules/jsonapi/tests/src/Functional/MenuLinkContentTest.php
MenuLinkManager.php in core/lib/Drupal/Core/Menu/MenuLinkManager.php
MenuLinkTree.php in core/lib/Drupal/Core/Menu/MenuLinkTree.php
MessageTest.php in core/modules/jsonapi/tests/src/Functional/MessageTest.php
Migration.php in core/modules/migrate/src/Plugin/Migration.php
ModuleHandler.php in core/lib/Drupal/Core/Extension/ModuleHandler.php
NavigationRenderer.php in core/modules/navigation/src/NavigationRenderer.php
NestedArrayTest.php in core/tests/Drupal/Tests/Component/Utility/NestedArrayTest.php
NodeTest.php in core/modules/jsonapi/tests/src/Functional/NodeTest.php
Plugin.php in core/lib/Drupal/Component/Annotation/Plugin.php
PluginDependencyTrait.php in core/lib/Drupal/Core/Plugin/PluginDependencyTrait.php
QueryParameter.php in core/modules/views/src/Plugin/views/argument_default/QueryParameter.php
Registry.php in core/lib/Drupal/Core/Theme/Registry.php
Relationship.php in core/modules/jsonapi/src/JsonApiResource/Relationship.php
ResourceTestBase.php in core/modules/jsonapi/tests/src/Functional/ResourceTestBase.php
RestPermissions.php in core/modules/rest/src/RestPermissions.php
Row.php in core/modules/migrate/src/Row.php
SelectionPluginBase.php in core/lib/Drupal/Core/Entity/EntityReferenceSelection/SelectionPluginBase.php
ShortcutTest.php in core/modules/jsonapi/tests/src/Functional/ShortcutTest.php
SmartDefaultSettingsTest.php in core/modules/ckeditor5/tests/src/Unit/SmartDefaultSettingsTest.php
SmartDefaultSettingsTest.php in core/modules/ckeditor5/tests/src/Kernel/SmartDefaultSettingsTest.php
Sql.php in core/modules/views/src/Plugin/views/query/Sql.php
StaticMap.php in core/modules/migrate/src/Plugin/migrate/process/StaticMap.php
StorableConfigBase.php in core/lib/Drupal/Core/Config/StorableConfigBase.php
SubformState.php in core/lib/Drupal/Core/Form/SubformState.php
SubformStateTest.php in core/tests/Drupal/Tests/Core/Form/SubformStateTest.php
SystemCompactLink.php in core/lib/Drupal/Core/Render/Element/SystemCompactLink.php
TermTest.php in core/modules/jsonapi/tests/src/Functional/TermTest.php
Test.php in core/modules/media/tests/modules/media_test_source/src/Plugin/media/Source/Test.php
TestDiscovery.php in core/lib/Drupal/Core/Test/TestDiscovery.php
theme_test.module in core/modules/system/tests/modules/theme_test/theme_test.module
Test module.
TypedConfigManager.php in core/lib/Drupal/Core/Config/TypedConfigManager.php
UnitTestCase.php in core/tests/Drupal/Tests/UnitTestCase.php
UnroutedUrlAssembler.php in core/lib/Drupal/Core/Utility/UnroutedUrlAssembler.php
Url.php in core/lib/Drupal/Core/Url.php
UserTest.php in core/modules/jsonapi/tests/src/Functional/UserTest.php
View.php in core/modules/views/src/Entity/View.php
views.views.inc in core/modules/views/views.views.inc
Provide views data that isn't tied to any other module.
ViewsData.php in core/modules/views/src/ViewsData.php
ViewValidationTest.php in core/modules/views/tests/src/Kernel/Entity/ViewValidationTest.php
WidgetBase.php in core/lib/Drupal/Core/Field/WidgetBase.php
WizardPluginBase.php in core/modules/views/src/Plugin/views/wizard/WizardPluginBase.php

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