Expanded class hierarchy of Textarea in Drupal 10

class \Drupal\Component\Plugin\PluginBase implements DerivativeInspectionInterface, PluginInspectionInterface
- class \Drupal\Core\Menu\ContextualLinkDefault implements ContextualLinkInterface
- class \Drupal\Core\Menu\LocalActionDefault implements CacheableDependencyInterface, LocalActionInterface, ContainerFactoryPluginInterface uses DependencySerializationTrait
- class \Drupal\Core\Menu\LocalTaskDefault implements CacheableDependencyInterface, LocalTaskInterface uses DependencySerializationTrait
- class \Drupal\Core\Plugin\PluginBase uses DependencySerializationTrait, MessengerTrait, StringTranslationTrait
  - class \Drupal\breakpoint\Breakpoint implements BreakpointInterface
  - class \Drupal\ckeditor5\Plugin\CKEditor5PluginDefault implements CKEditor5PluginInterface
  - class \Drupal\ckeditor\CKEditorPluginBase implements CKEditorPluginButtonsInterface, CKEditorPluginInterface
  - class \Drupal\ckeditor\Plugin\CKEditorPlugin\DrupalMedia implements CKEditorPluginContextualInterface, CKEditorPluginCssInterface, ContainerFactoryPluginInterface
  - class \Drupal\config_translation\ConfigNamesMapper implements ConfigMapperInterface, ContainerFactoryPluginInterface
  - class \Drupal\Core\Action\ActionBase implements ActionInterface
  - class \Drupal\Core\Block\BlockBase implements BlockPluginInterface, ContextAwarePluginInterface, PluginWithFormsInterface, PreviewAwarePluginInterface, PreviewFallbackInterface uses BlockPluginTrait, ContextAwarePluginAssignmentTrait, ContextAwarePluginTrait
  - class \Drupal\Core\Display\VariantBase implements VariantInterface uses RefinableCacheableDependencyTrait, PluginDependencyTrait
  - class \Drupal\Core\Entity\EntityReferenceSelection\SelectionPluginBase implements ConfigurableInterface, DependentPluginInterface, SelectionInterface
  - class \Drupal\Core\Executable\ExecutablePluginBase implements CacheableDependencyInterface, ExecutableInterface, ContextAwarePluginInterface uses ContextAwarePluginTrait
  - class \Drupal\Core\Field\PluginSettingsBase implements DependentPluginInterface, PluginSettingsInterface
  - class \Drupal\Core\Http\LinkRelationType implements LinkRelationTypeInterface
  - class \Drupal\Core\ImageToolkit\ImageToolkitBase implements ImageToolkitInterface
  - class \Drupal\Core\ImageToolkit\ImageToolkitOperationBase implements ImageToolkitOperationInterface
  - class \Drupal\Core\Layout\LayoutDefault implements LayoutInterface, PluginFormInterface, PreviewAwarePluginInterface uses ContextAwarePluginAssignmentTrait, ContextAwarePluginTrait
  - class \Drupal\Core\Menu\MenuLinkBase implements MenuLinkInterface
  - class \Drupal\Core\Render\Element\RenderElement implements ElementInterface
    class \Drupal\contextual\Element\ContextualLinks
    
    class \Drupal\contextual\Element\ContextualLinksPlaceholder
    
    class \Drupal\Core\Render\Element\Ajax
    
    class \Drupal\Core\Render\Element\Container
    
    class \Drupal\Core\Render\Element\Details
    
    class \Drupal\Core\Render\Element\Dropbutton
    
    class \Drupal\Core\Render\Element\Fieldset
    
    class \Drupal\Core\Render\Element\Form
    
    class \Drupal\Core\Render\Element\FormElement implements FormElementInterface
    class \Drupal\Core\Datetime\Element\DateElementBase
    
    class \Drupal\Core\Render\Element\Button
    
    class \Drupal\Core\Render\Element\Checkbox
    
    class \Drupal\Core\Render\Element\Checkboxes uses CompositeFormElementTrait
    
    class \Drupal\Core\Render\Element\Color
    
    class \Drupal\Core\Render\Element\Date
    
    class \Drupal\Core\Render\Element\Email
    
    class \Drupal\Core\Render\Element\File
    
    class \Drupal\Core\Render\Element\Hidden
    
    class \Drupal\Core\Render\Element\Item
    
    class \Drupal\Core\Render\Element\LanguageSelect
    
    class \Drupal\Core\Render\Element\Number
    
    class \Drupal\Core\Render\Element\Password
    
    class \Drupal\Core\Render\Element\PasswordConfirm
    
    class \Drupal\Core\Render\Element\Radio
    
    class \Drupal\Core\Render\Element\Radios uses CompositeFormElementTrait
    
    class \Drupal\Core\Render\Element\Search
    
    class \Drupal\Core\Render\Element\Select
    
    class \Drupal\Core\Render\Element\Table
    
    class \Drupal\Core\Render\Element\Tel
    
    class \Drupal\Core\Render\Element\Textarea
    
    class \Drupal\Core\Render\Element\Textfield
    
    class \Drupal\Core\Render\Element\Url
    
    class \Drupal\Core\Render\Element\Value
    
    class \Drupal\Core\Render\Element\Weight
    
    class \Drupal\file\Element\ManagedFile
    
    class \Drupal\language\Element\LanguageConfiguration
    
    class \Drupal\Core\Render\Element\Html
    
    class \Drupal\Core\Render\Element\HtmlTag
    
    class \Drupal\Core\Render\Element\InlineTemplate
    
    class \Drupal\Core\Render\Element\Label
    
    class \Drupal\Core\Render\Element\Link
    
    class \Drupal\Core\Render\Element\Page
    
    class \Drupal\Core\Render\Element\Pager
    
    class \Drupal\Core\Render\Element\PageTitle
    
    class \Drupal\Core\Render\Element\StatusMessages
    
    class \Drupal\Core\Render\Element\StatusReport
    
    class \Drupal\Core\Render\Element\VerticalTabs
    
    class \Drupal\Core\TempStore\Element\BreakLockLink implements ContainerFactoryPluginInterface
    
    class \Drupal\filter\Element\ProcessedText
    
    class \Drupal\filter\Element\TextFormat
    
    class \Drupal\layout_builder\Element\LayoutBuilder implements ContainerFactoryPluginInterface uses AjaxHelperTrait, LayoutBuilderContextTrait, LayoutBuilderHighlightTrait
    
    class \Drupal\responsive_image\Element\ResponsiveImage
    
    class \Drupal\system\Element\StatusReportPage
    
    class \Drupal\toolbar\Element\Toolbar
    
    class \Drupal\toolbar\Element\ToolbarItem
    
    class \Drupal\views\Element\View
  - class \Drupal\editor\Plugin\EditorBase implements EditorPluginInterface
  - class \Drupal\filter\Plugin\FilterBase implements FilterInterface
  - class \Drupal\help\Plugin\HelpSection\HelpSectionPluginBase implements HelpSectionPluginInterface uses UnchangingCacheableDependencyTrait
  - class \Drupal\help_topics\HelpTopicPluginBase implements HelpTopicPluginInterface
  - class \Drupal\image\ImageEffectBase implements ContainerFactoryPluginInterface, ImageEffectInterface
  - class \Drupal\KernelTests\Core\Plugin\TestContextAwarePlugin implements ContextAwarePluginInterface uses ContextAwarePluginTrait
  - class \Drupal\layout_builder\Plugin\SectionStorage\SectionStorageBase implements CacheableDependencyInterface, SectionStorageInterface, TempStoreIdentifierInterface uses ContextAwarePluginTrait, LayoutBuilderRoutesTrait
  - class \Drupal\layout_builder_test\Plugin\SectionStorage\SimpleConfigSectionStorage implements ContainerFactoryPluginInterface, SectionStorageLocalTaskProviderInterface, SectionStorageInterface uses ContextAwarePluginTrait, LayoutBuilderRoutesTrait, SectionListTrait
  - class \Drupal\media\MediaSourceBase implements ContainerFactoryPluginInterface, MediaSourceInterface
  - class \Drupal\migrate\Plugin\migrate\destination\DestinationBase implements MigrateDestinationInterface, RequirementsInterface
  - class \Drupal\migrate\Plugin\migrate\id_map\NullIdMap implements MigrateIdMapInterface
  - class \Drupal\migrate\Plugin\migrate\id_map\Sql implements ContainerFactoryPluginInterface, HighestIdInterface, MigrateIdMapInterface
  - class \Drupal\migrate\Plugin\migrate\source\SourcePluginBase implements RollbackAwareInterface, MigrateSourceInterface
  - class \Drupal\migrate\Plugin\Migration implements ContainerFactoryPluginInterface, MigrationInterface, RequirementsInterface
  - class \Drupal\migrate\ProcessPluginBase implements MigrateProcessInterface
  - class \Drupal\migrate_drupal\Plugin\migrate\field\FieldPluginBase implements MigrateFieldInterface
  - class \Drupal\plugin_test\Plugin\plugin_test\mock_block\MockComplexContextBlock implements ContextAwarePluginInterface uses ContextAwarePluginTrait
  - class \Drupal\plugin_test\Plugin\plugin_test\mock_block\MockUserNameBlock implements ContextAwarePluginInterface uses ContextAwarePluginTrait
  - class \Drupal\plugin_test\Plugin\plugin_test\mock_block\TypedDataStringBlock implements ContextAwarePluginInterface uses ContextAwarePluginTrait
  - class \Drupal\quickedit\Plugin\InPlaceEditorBase implements InPlaceEditorInterface
  - class \Drupal\rest\Plugin\ResourceBase implements ContainerFactoryPluginInterface, ResourceInterface
  - class \Drupal\search\Plugin\SearchPluginBase implements RefinableCacheableDependencyInterface, ContainerFactoryPluginInterface, SearchInterface uses RefinableCacheableDependencyTrait
  - class \Drupal\tour\TipPluginBase implements TipPluginInterface
  - class \Drupal\views\Plugin\views\join\JoinPluginBase implements JoinPluginInterface
  - class \Drupal\views\Plugin\views\PluginBase implements DependentPluginInterface, ContainerFactoryPluginInterface, TrustedCallbackInterface, ViewsPluginInterface
- class \Drupal\Core\Queue\QueueWorkerBase implements QueueWorkerInterface
- class \Drupal\entity_test\Plugin\Validation\Constraint\EntityTestDefaultPlugin
- class \Drupal\plugin_test\Plugin\plugin_test\mock_block\MockLayoutBlock
- class \Drupal\plugin_test\Plugin\plugin_test\mock_block\MockTestBlock
- class \Drupal\plugin_test\Plugin\plugin_test\mock_block\MockUserLoginBlock
- class \Drupal\quickedit\Plugin\InPlaceEditor\Editor implements InPlaceEditorInterface
- class \Drupal\Tests\Core\Plugin\ConfigurablePlugin implements ConfigurableInterface
- class \Drupal\Tests\Core\Plugin\TestClass implements PluginFormInterface, PluginWithFormsInterface uses PluginWithFormsTrait
- class \Drupal\workflows\Plugin\WorkflowTypeBase implements WorkflowTypeInterface uses PluginWithFormsTrait

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Expanded class hierarchy of Textarea in Drupal 10

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