Expanded class hierarchy of IssueItem in Simplenews 8

class \Drupal\Core\TypedData\TypedData implements PluginInspectionInterface, TypedDataInterface uses DependencySerializationTrait, StringTranslationTrait, TypedDataTrait
- class \Drupal\charts\Plugin\DataType\ChartConfigData
- class \Drupal\commerce_shipping\Plugin\DataType\ShipmentItem
- class \Drupal\commerce_stock_field\StockLevelProcessor
- class \Drupal\Core\Config\Schema\Element
- class \Drupal\Core\Entity\Plugin\DataType\EntityAdapter implements \Drupal\Core\Entity\Plugin\DataType\IteratorAggregate, ComplexDataInterface
- class \Drupal\Core\TypedData\DataReferenceBase implements DataReferenceInterface
- class \Drupal\Core\TypedData\Plugin\DataType\Any
- class \Drupal\Core\TypedData\Plugin\DataType\ItemList implements \Drupal\Core\TypedData\Plugin\DataType\IteratorAggregate, ListInterface
- class \Drupal\Core\TypedData\Plugin\DataType\Language
- class \Drupal\Core\TypedData\Plugin\DataType\Map implements \Drupal\Core\TypedData\Plugin\DataType\IteratorAggregate, ComplexDataInterface
  - class \Drupal\colorapi\Plugin\DataType\ColorData implements ColorInterface
  - class \Drupal\colorapi\Plugin\DataType\RgbColorData implements RgbColorInterface
  - class \Drupal\Core\Field\FieldItemBase implements FieldItemInterface
    class \Drupal\address\Plugin\Field\FieldType\AddressItem implements AddressInterface uses AvailableCountriesTrait
    
    class \Drupal\address\Plugin\Field\FieldType\CountryItem uses AvailableCountriesTrait
    
    class \Drupal\address\Plugin\Field\FieldType\ZoneItem uses AvailableCountriesTrait
    
    class \Drupal\amazon_field\Plugin\Field\FieldType\AmazonAsinField
    
    class \Drupal\barcode\Plugin\Field\FieldType\BarcodeBase
    
    class \Drupal\basic_cart\Plugin\Field\FieldType\AddToCartItem
    
    class \Drupal\basic_cart\Plugin\Field\FieldType\AddToCartItem
    
    class \Drupal\basic_cart\Plugin\Field\FieldType\AddToCartItem
    
    class \Drupal\basic_cart\Plugin\Field\FieldType\AddToCartItem
    
    class \Drupal\basic_cart\Plugin\Field\FieldType\AddToCartItem
    
    class \Drupal\basic_cart\Plugin\Field\FieldType\AddToCartItem
    
    class \Drupal\basic_cart\Plugin\Field\FieldType\AddToCartItem
    
    class \Drupal\bat_calendar_reference\Plugin\Field\FieldType\BatCalendarUnitReference
    
    class \Drupal\bat_calendar_reference\Plugin\Field\FieldType\BatCalendarUnitTypeReference
    
    class \Drupal\bat_options\Plugin\Field\FieldType\BatTypeOptions
    
    class \Drupal\block_field\Plugin\Field\FieldType\BlockFieldItem implements BlockFieldItemInterface
    
    class \Drupal\brazilian_ids\Plugin\Field\FieldType\RgItem
    
    class \Drupal\button_field\Plugin\Field\FieldType\ButtonField
    
    class \Drupal\bynder\Plugin\Field\FieldType\BynderMetadataItem
    
    class \Drupal\bynder\Plugin\Field\FieldType\BynderMetadataItem
    
    class \Drupal\casetracker\Plugin\Field\FieldType\CaseStatus
    
    class \Drupal\charts\Plugin\Field\FieldType\ChartConfigItem
    
    class \Drupal\cmis\Plugin\Field\FieldType\CmisField
    
    class \Drupal\cmis\Plugin\Field\FieldType\CmisField
    
    class \Drupal\colorapi\Plugin\Field\FieldType\ColorItem implements ColorItemInterface
    
    class \Drupal\color_field\Plugin\Field\FieldType\ColorFieldItem
    
    class \Drupal\color_field\Plugin\Field\FieldType\ColorFieldType
    
    class \Drupal\comment\Plugin\Field\FieldType\CommentItem implements CommentItemInterface
    
    class \Drupal\commerce\Plugin\Field\FieldType\PluginItem implements PluginItemInterface
    
    class \Drupal\commerce\Plugin\Field\FieldType\RemoteIdItem
    
    class \Drupal\commerce_order\Plugin\Field\FieldType\AdjustmentItem
    
    class \Drupal\commerce_price\Plugin\Field\FieldType\PriceItem
    
    class \Drupal\commerce_price_table\Plugin\Field\FieldType\PriceTableItem
    
    class \Drupal\commerce_product_bundle\Plugin\Field\FieldType\BundleItemSelection
    
    class \Drupal\commerce_product_tax\Plugin\Field\FieldType\TaxRateItem
    
    class \Drupal\commerce_recurring\Plugin\Field\FieldType\BillingPeriodItem
    
    class \Drupal\commerce_recurring\Plugin\Field\FieldType\ScheduledChangeItem
    
    class \Drupal\commerce_shipping\Plugin\Field\FieldType\ShipmentItem
    
    class \Drupal\commerce_stock_field\Plugin\Field\FieldType\StockLevel uses ContextCreatorTrait
    
    class \Drupal\commerce_tax\Plugin\Field\FieldType\TaxNumberItem implements TaxNumberItemInterface
    
    class \Drupal\commerce_wishlist\Plugin\Field\FieldType\WishlistPurchaseItem
    
    class \Drupal\computed_field\Plugin\Field\FieldType\ComputedFieldItem
    
    class \Drupal\computed_field\Plugin\Field\FieldType\ComputedFieldItemBase uses ComputedFieldItemTrait
    
    class \Drupal\Core\Field\Plugin\Field\FieldType\BooleanItem implements OptionsProviderInterface
    
    class \Drupal\Core\Field\Plugin\Field\FieldType\EmailItem
    
    class \Drupal\Core\Field\Plugin\Field\FieldType\EntityReferenceItem implements PreconfiguredFieldUiOptionsInterface, OptionsProviderInterface
    class \Drupal\bibcite_entity\Plugin\Field\FieldType\Contributor implements ContributorFieldInterface
    
    class \Drupal\bricks\Plugin\Field\FieldType\BricksTreeItem uses BricksFieldTypeTrait
    
    class \Drupal\dynamic_entity_reference\Plugin\Field\FieldType\DynamicEntityReferenceItem
    
    class \Drupal\dynamic_entity_reference\Plugin\Field\FieldType\DynamicEntityReferenceItem
    
    class \Drupal\entity_hierarchy\Plugin\Field\FieldType\EntityReferenceHierarchy uses TreeLockTrait
    
    class \Drupal\entity_reference\ConfigurableEntityReferenceItem
    
    class \Drupal\entity_reference_revisions\Plugin\Field\FieldType\EntityReferenceRevisionsItem implements PreconfiguredFieldUiOptionsInterface, OptionsProviderInterface
    
    class \Drupal\feeds\Plugin\Field\FieldType\FeedsItem implements FeedsItemInterface
    
    class \Drupal\field_collection\Plugin\Field\FieldType\FieldCollection
    
    class \Drupal\file\Plugin\Field\FieldType\FileItem
    
    class \Drupal\ingredient\Plugin\Field\FieldType\IngredientItem
    
    class \Drupal\library\Plugin\Field\FieldType\LibraryItemFieldType
    
    class \Drupal\multiversion\EntityReferenceItem uses EntityReferenceFieldTrait
    
    class \Drupal\multiversion\EntityReferenceItem uses EntityReferenceFieldTrait
    
    class \Drupal\multiversion\Plugin\Field\FieldType\WorkspaceReferenceItem
    
    class \Drupal\og\Plugin\Field\FieldType\OgStandardReferenceItem
    
    class \Drupal\payment_reference\Plugin\Field\FieldType\PaymentReference
    
    class \Drupal\pbf\Plugin\Field\FieldType\Pbf
    
    class \Drupal\simplenews\Plugin\Field\FieldType\IssueItem
    
    class \Drupal\simplenews\Plugin\Field\FieldType\IssueItem
    
    class \Drupal\simplenews\Plugin\Field\FieldType\SubscriptionItem
    
    class \Drupal\simplenews\Plugin\Field\FieldType\SubscriptionItem
    
    class \Drupal\term_level\Plugin\Field\FieldType\TermLevelItem
    
    class \Drupal\viewfield\Plugin\Field\FieldType\ViewfieldItem
    
    class \Drupal\viewsreference\Plugin\Field\FieldType\ViewsReferenceItem
    
    class \Drupal\viewsreference\Plugin\Field\FieldType\ViewsReferenceItem implements PreconfiguredFieldUiOptionsInterface, OptionsProviderInterface
    
    class \Drupal\webform\Plugin\Field\FieldType\WebformEntityReferenceItem
    
    class \Drupal\yamlform\Plugin\Field\FieldType\YamlFormEntityReferenceItem
    
    class \Drupal\Core\Field\Plugin\Field\FieldType\LanguageItem implements OptionsProviderInterface
    
    class \Drupal\Core\Field\Plugin\Field\FieldType\MapItem
    
    class \Drupal\Core\Field\Plugin\Field\FieldType\NumericItemBase
    
    class \Drupal\Core\Field\Plugin\Field\FieldType\StringItemBase
    
    class \Drupal\Core\Field\Plugin\Field\FieldType\TimestampItem
    
    class \Drupal\core_context\Plugin\Field\FieldType\ContextItem
    
    class \Drupal\country\Plugin\Field\FieldType\CountryItem implements OptionsProviderInterface
    
    class \Drupal\country_state_city\Plugin\Field\FieldType\CountryStateCityType
    
    class \Drupal\country_state_city\Plugin\Field\FieldType\CountryStateType
    
    class \Drupal\country_state_city\Plugin\Field\FieldType\CountryType
    
    class \Drupal\cpf\Plugin\Field\FieldType\CpfItem
    
    class \Drupal\cpf\Plugin\Field\FieldType\CpfItem
    
    class \Drupal\datetime\Plugin\Field\FieldType\DateTimeItem implements DateTimeItemInterface
    
    class \Drupal\disqus\Plugin\Field\FieldType\DisqusItem
    
    class \Drupal\double_field\Plugin\Field\FieldType\DoubleField
    
    class \Drupal\download\Plugin\Field\FieldType\DownloadLink implements FieldItemInterface
    
    class \Drupal\dropdown\Plugin\Field\FieldType\Dropdown
    
    class \Drupal\dropdown\Plugin\Field\FieldType\Dropdown
    
    class \Drupal\dropdown\Plugin\Field\FieldType\Dropdown
    
    class \Drupal\dropdown\Plugin\Field\FieldType\Dropdown
    
    class \Drupal\dropdown\Plugin\Field\FieldType\Dropdown
    
    class \Drupal\dropdown\Plugin\Field\FieldType\Dropdown
    
    class \Drupal\dropdown\Plugin\Field\FieldType\Dropdown
    
    class \Drupal\dropdown\Plugin\Field\FieldType\Dropdown
    
    class \Drupal\dropdown\Plugin\Field\FieldType\Dropdown
    
    class \Drupal\duration_field\Plugin\Field\FieldType\DurationField implements FieldItemInterface
    
    class \Drupal\duration_field\Plugin\Field\FieldType\DurationField implements FieldItemInterface
    
    class \Drupal\easychart\Plugin\Field\FieldType\Easychart
    
    class \Drupal\editor_note\Plugin\Field\FieldType\EditorNoteItem implements FieldItemInterface
    
    class \Drupal\entityblock\Plugin\Field\FieldType\EntityBlockItem
    
    class \Drupal\entity_reference_display\Plugin\Field\FieldType\EntityReferenceDisplayItem implements OptionsProviderInterface
    
    class \Drupal\entity_test\Plugin\Field\FieldType\FieldTestItem
    
    class \Drupal\entity_test\Plugin\Field\FieldType\SerializedItem
    
    class \Drupal\entity_test\Plugin\Field\FieldType\SerializedPropertyItem
    
    class \Drupal\entity_test\Plugin\Field\FieldType\ShapeItem
    
    class \Drupal\entity_test_update\Plugin\Field\FieldType\MultiValueTestItem
    
    class \Drupal\facebook_comments\Plugin\Field\FieldType\FacebookComments
    
    class \Drupal\faqfield\Plugin\Field\FieldType\FaqFieldItem
    
    class \Drupal\field_collection\Plugin\Field\FieldType\FieldCollection
    
    class \Drupal\field_example\Plugin\Field\FieldType\RgbItem
    
    class \Drupal\field_ipaddress\Plugin\Field\FieldType\IpAddressField implements FieldItemInterface
    
    class \Drupal\field_menu\Plugin\Field\FieldType\MenuItemId
    
    class \Drupal\field_nif\Plugin\Field\FieldType\NifItem
    
    class \Drupal\field_permission_example\Plugin\Field\FieldType\FieldNote
    
    class \Drupal\field_test\Plugin\Field\FieldType\TestItem
    
    class \Drupal\field_test\Plugin\Field\FieldType\TestObjectItem
    
    class \Drupal\field_token_value\Plugin\Field\FieldType\FieldTokenValueItem
    
    class \Drupal\fivestar\Plugin\Field\FieldType\FivestarItem
    
    class \Drupal\fontawesome\Plugin\Field\FieldType\FontAwesomeIcon implements FieldItemInterface
    
    class \Drupal\font_field_icon\Plugin\Field\FieldType\FontFieldIcon
    
    class \Drupal\formatter_field\Plugin\Field\FieldType\FormatterItem
    
    class \Drupal\gdpr_consent\Plugin\Field\FieldType\UserConsentItem
    
    class \Drupal\gdpr_consent\Plugin\Field\FieldType\UserConsentItem
    
    class \Drupal\gdpr_tasks\Plugin\Field\FieldType\TaskLogItem
    
    class \Drupal\gdpr_tasks\Plugin\Field\FieldType\TaskLogItem
    
    class \Drupal\geofield\Plugin\Field\FieldType\GeofieldItem
    
    class \Drupal\geolocation\Plugin\Field\FieldType\GeolocationItem
    
    class \Drupal\geolocation\Plugin\Field\FieldType\GeolocationItem
    
    class \Drupal\geolocation\Plugin\Field\FieldType\GeolocationItem
    
    class \Drupal\geolocation_geometry\Plugin\Field\FieldType\GeolocationGeometryBase
    
    class \Drupal\geshifield\Plugin\Field\FieldType\GeshiFieldItem
    
    class \Drupal\geshifield\Plugin\Field\FieldType\GeshiFieldItem
    
    class \Drupal\google_adwords\Plugin\Field\FieldType\GoogleAdwordsTracking
    
    class \Drupal\google_map_field\Plugin\Field\FieldType\GoogleMapFieldType
    
    class \Drupal\heading\Plugin\Field\FieldType\HeadingItem
    
    class \Drupal\hijri\Plugin\Field\FieldType\HijriItem
    
    class \Drupal\hms_field\Plugin\Field\FieldType\HMSFieldItem
    
    class \Drupal\hubspot_forms\Plugin\Field\FieldType\HubspotFormItem
    
    class \Drupal\icon_field\Plugin\Field\FieldType\IconFieldItem
    
    class \Drupal\iframe\Plugin\Field\FieldType\IframeItem
    
    class \Drupal\iframe\Plugin\Field\FieldType\IframeItem
    
    class \Drupal\image_module_test\Plugin\Field\FieldType\DummyAjaxItem
    
    class \Drupal\international_phone\Plugin\Field\FieldType\InternationalPhone
    
    class \Drupal\interval\Plugin\Field\FieldType\IntervalItem implements IntervalItemInterface
    
    class \Drupal\isbn\Plugin\Field\FieldType\IsbnItem
    
    class \Drupal\jquery_colorpicker\Plugin\Field\FieldType\JqueryColorpickerColorItem
    
    class \Drupal\jquery_colorpicker\Plugin\Field\FieldType\JQueryColorpickerItem implements FieldItemInterface
    
    class \Drupal\jsonapi_image_styles\Plugin\Field\FieldType\ImageStyleNormalizedFieldItem
    
    class \Drupal\json_field\Plugin\Field\FieldType\JSONItem
    
    class \Drupal\json_field\Plugin\Field\FieldType\NativeJSONItem
    
    class \Drupal\layout_builder\Plugin\Field\FieldType\LayoutSectionItem
    
    class \Drupal\layout_builder_st\Plugin\Field\FieldType\LayoutTranslationItem
    
    class \Drupal\like_dislike\Plugin\Field\FieldType\LikeDislikeField
    
    class \Drupal\link\Plugin\Field\FieldType\LinkItem implements LinkItemInterface
    
    class \Drupal\loqate\Plugin\Field\FieldType\LoqatePcaAddressItem
    
    class \Drupal\machine_name\Plugin\Field\FieldType\MachineName
    
    class \Drupal\mailchimp_lists\Plugin\Field\FieldType\MailchimpListsSubscription
    
    class \Drupal\mailhandler\Plugin\Field\FieldType\GpgKeyItem
    
    class \Drupal\markup\Plugin\Field\FieldType\MarkupItem
    
    class \Drupal\menu_link\Plugin\Field\FieldType\MenuLinkItem
    
    class \Drupal\metatag\Plugin\Field\FieldType\MetatagFieldItem
    
    class \Drupal\mobile_number\Plugin\Field\FieldType\MobileNumberItem
    
    class \Drupal\multiversion\Plugin\Field\FieldType\RevisionItem
    
    class \Drupal\multiversion\Plugin\Field\FieldType\RevisionItem
    
    class \Drupal\name\Plugin\Field\FieldType\NameItem implements TrustedCallbackInterface uses NameAdditionalPreferredTrait, NameFieldSettingsTrait, NameFormDisplaySettingsTrait, NameFormSettingsHelperTrait
    
    class \Drupal\office_hours\Plugin\Field\FieldType\OfficeHoursItem
    
    class \Drupal\og\Plugin\Field\FieldType\OgGroupItem
    
    class \Drupal\opigno_certificate\Plugin\Field\FieldType\ViewModeSelectorItem
    
    class \Drupal\opigno_file_upload\Plugin\Field\FieldType\OpignoEvaluationMethodField
    
    class \Drupal\opigno_module\Plugin\Field\FieldType\OpignoTrueFalseFieldType
    
    class \Drupal\options\Plugin\Field\FieldType\ListItemBase implements OptionsProviderInterface uses AllowedTagsXssTrait
    
    class \Drupal\panelizer\Plugin\Field\FieldType\PanelizerFieldType
    
    class \Drupal\panelizer\Plugin\Field\FieldType\PanelizerFieldType
    
    class \Drupal\panelizer\Plugin\Field\FieldType\PanelizerFieldType
    
    class \Drupal\paragraphs_grid\Plugin\Field\FieldType\GridFieldType
    
    class \Drupal\password_field\Plugin\Field\FieldType\PasswordField implements FieldItemInterface
    
    class \Drupal\path\Plugin\Field\FieldType\PathItem
    
    class \Drupal\phone_international\Plugin\Field\FieldType\PhoneInternational implements FieldItemInterface
    
    class \Drupal\phone_international\Plugin\Field\FieldType\PhoneInternational implements FieldItemInterface
    
    class \Drupal\physical\Plugin\Field\FieldType\DimensionsItem
    
    class \Drupal\physical\Plugin\Field\FieldType\MeasurementItem implements PreconfiguredFieldUiOptionsInterface
    
    class \Drupal\plugin\Plugin\Field\FieldType\PluginCollectionItemBase implements PluginCollectionItemInterface
    
    class \Drupal\postal_code\Plugin\Field\FieldType\PostalCodeItem
    
    class \Drupal\price\Plugin\Field\FieldType\PriceItem
    
    class \Drupal\private_content\Plugin\Field\FieldType\PrivateItem
    
    class \Drupal\radioactivity\Plugin\Field\FieldType\RadioactivityField
    
    class \Drupal\radioactivity\Plugin\Field\FieldType\RadioactivityField
    
    class \Drupal\range\Plugin\Field\FieldType\RangeItemBase implements RangeItemInterface
    
    class \Drupal\redirect\Plugin\Field\FieldType\RedirectSourceItem
    
    class \Drupal\relation_endpoint\Plugin\Field\FieldType\RelationEndpointItem
    
    class \Drupal\replication\Plugin\Field\FieldType\ReplicationHistoryItem
    
    class \Drupal\replication\Plugin\Field\FieldType\ReplicationHistoryItem
    
    class \Drupal\rocket_chat_group\Plugin\Field\FieldType\GroupChannel
    
    class \Drupal\scheduled_publish\Plugin\Field\FieldType\ScheduledPublish implements DateTimeItemInterface
    
    class \Drupal\scheduled_publish\Plugin\Field\FieldType\ScheduledPublish implements DateTimeItemInterface
    
    class \Drupal\search_api_exclude_entity\Plugin\Field\FieldType\SearchApiExcludeEntityFieldItem
    
    class \Drupal\search_api_federated_solr\Plugin\Field\FieldType\FederatedTerms
    
    class \Drupal\search_api_federated_solr\Plugin\Field\FieldType\FederatedTerms
    
    class \Drupal\search_api_federated_solr\Plugin\Field\FieldType\FederatedTerms
    
    class \Drupal\search_api_field_map\Plugin\Field\FieldType\MappedTerms
    
    class \Drupal\search_api_field_map\Plugin\Field\FieldType\MappedTerms
    
    class \Drupal\search_api_field_map\Plugin\Field\FieldType\MappedTerms
    
    class \Drupal\serial\Plugin\Field\FieldType\SerialItem
    
    class \Drupal\signature_field\Plugin\Field\FieldType\SignatureField
    
    class \Drupal\simple_iframe\Plugin\Field\FieldType\SimpleIframeFieldType
    
    class \Drupal\skype\Plugin\Field\FieldType\SkypeItem
    
    class \Drupal\social_link_field\Plugin\Field\FieldType\SocialLinkItem
    
    class \Drupal\social_media\Plugin\Field\FieldType\SocialMediaItem implements OptionsProviderInterface
    
    class \Drupal\social_media_links_field\Plugin\Field\FieldType\SocialMediaLinksFieldItem
    
    class \Drupal\soundcloudfield\Plugin\Field\FieldType\SoundCloudItem
    
    class \Drupal\starrating\Plugin\Field\FieldType\StarRatingItem
    
    class \Drupal\starrating\Plugin\Field\FieldType\StarRatingItem
    
    class \Drupal\starrating\Plugin\Field\FieldType\StarRatingItem
    
    class \Drupal\starrating\Plugin\Field\FieldType\StarRatingItem
    
    class \Drupal\state_machine\Plugin\Field\FieldType\StateItem implements OptionsProviderInterface, StateItemInterface
    
    class \Drupal\tablefield\Plugin\Field\FieldType\TablefieldItem
    
    class \Drupal\telephone\Plugin\Field\FieldType\TelephoneItem
    
    class \Drupal\text\Plugin\Field\FieldType\TextItemBase
    
    class \Drupal\text_with_title\Plugin\Field\FieldType\TextWithTitle
    
    class \Drupal\time_field\Plugin\Field\FieldType\TimeRangeType
    
    class \Drupal\time_field\Plugin\Field\FieldType\TimeType
    
    class \Drupal\time_picker\Plugin\Field\FieldType\TimePickerType
    
    class \Drupal\time_picker\Plugin\Field\FieldType\TimeRangePickerType
    
    class \Drupal\tmgmt_language_combination\Plugin\Field\FieldType\LanguageCombination
    
    class \Drupal\tweetbutton\Plugin\Field\FieldType\TweetbuttonItem
    
    class \Drupal\tweet_feed\Plugin\Field\FieldType\UserMentionsFieldType
    
    class \Drupal\twig_field\Plugin\Field\FieldType\TwigItem
    
    class \Drupal\twitter_embed\Plugin\Field\FieldType\TwitterEmbedItem
    
    class \Drupal\twitter_profile_widget\Plugin\Field\FieldType\TwitterWidgetItem
    
    class \Drupal\tzfield\Plugin\Field\FieldType\TimeZoneItem
    
    class \Drupal\uc_product\Plugin\Field\FieldType\UcDimensionsItem
    
    class \Drupal\uc_product\Plugin\Field\FieldType\UcWeightItem
    
    class \Drupal\vat_number\Plugin\Field\FieldType\VatNumber implements FieldItemInterface
    
    class \Drupal\video_embed_field\Plugin\Field\FieldType\VideoEmbedField
    
    class \Drupal\video_embed_field\Plugin\Field\FieldType\VideoEmbedField
    
    class \Drupal\view_mode_selector\Plugin\Field\FieldType\ViewModeSelectorItem
    
    class \Drupal\votingapi_reaction\Plugin\Field\FieldType\VotingApiReactionItem implements VotingApiReactionItemInterface
    
    class \Drupal\votingapi_widgets\Plugin\Field\FieldType\VotingApiField
    
    class \Drupal\vud\Plugin\Field\FieldType\VoteUpDownField
    
    class \Drupal\weight\Plugin\Field\FieldType\WeightItem
    
    class \Drupal\workflows_field\Plugin\Field\FieldType\WorkflowsFieldItem implements OptionsProviderInterface
    
    class \Drupal\yamaps\Plugin\Field\FieldType\YamapsFieldType
    
    class \Drupal\yearonly\Plugin\Field\FieldType\YearOnlyItem implements FieldItemInterface
    
    class \Drupal\yoast_seo\Plugin\Field\FieldType\YoastSeoItem
    
    class \Drupal\yoast_seo\Plugin\Field\FieldType\YoastSeoItem
    
    class \Drupal\youtube\Plugin\Field\FieldType\YouTubeItem
  - class \Drupal\graphql_resolver_builder_test\Plugin\DataType\Tree
  - class \Drupal\rules\Plugin\DataType\CurrentDate
  - class \Drupal\rules\Plugin\DataType\CurrentPath
  - class \Drupal\rules\Plugin\DataType\Site implements SiteInterface
  - class \Drupal\rules_webform\Plugin\DataType\WebformFields
  - class \Drupal\rules_webform\Plugin\DataType\WebformFieldsUnchanged
  - class \Drupal\rules_webform\Plugin\DataType\WebformInfo
  - class \Drupal\search_api_solr_test\Plugin\DataType\Widget
- class \Drupal\Core\TypedData\PrimitiveBase implements PrimitiveInterface
- class \Drupal\datetime\DateTimeComputed
- class \Drupal\date_time_day\DateDayComputed
- class \Drupal\date_time_day\DateTimeDayComputed
- class \Drupal\entity_test\TypedData\ComputedString implements CacheableDependencyInterface
- class \Drupal\field_nif\NifProcessed
- class \Drupal\file\ComputedFileUrl
- class \Drupal\fraction\FractionDecimalProperty
- class \Drupal\fraction\FractionProperty
- class \Drupal\geolocation\TypedData\GeolocationComputed uses DependencySerializationTrait
- class \Drupal\geolocation\TypedData\GeolocationComputed uses DependencySerializationTrait
- class \Drupal\layout_builder\Plugin\DataType\SectionData
- class \Drupal\layout_builder_st\Plugin\DataType\LayoutTranslationData
- class \Drupal\multiversion\Field\RevisionsProperty
- class \Drupal\multiversion\Field\RevisionsProperty
- class \Drupal\multiversion\IsStub
- class \Drupal\multiversion\IsStub
- class \Drupal\multiversion\NewEdit
- class \Drupal\multiversion\NewEdit
- class \Drupal\pathauto\PathautoState
- class \Drupal\plugin\Plugin\DataType\PluginConfiguration
- class \Drupal\plugin\Plugin\DataType\PluginInstance
- class \Drupal\private_content\PrivateComputed
- class \Drupal\publication_date\PublishedAtOrNowComputed
- class \Drupal\replication\FailInfo
- class \Drupal\search_api_solr\Plugin\DataType\SolrDocument implements \Drupal\search_api_solr\Plugin\DataType\IteratorAggregate, ComplexDataInterface
- class \Drupal\search_api_solr\Plugin\DataType\SolrDocument implements \Drupal\search_api_solr\Plugin\DataType\IteratorAggregate, ComplexDataInterface
- class \Drupal\search_api_solr\Plugin\DataType\SolrField implements \Drupal\search_api_solr\Plugin\DataType\IteratorAggregate
- class \Drupal\search_api_solr\Plugin\DataType\SolrField implements \Drupal\search_api_solr\Plugin\DataType\IteratorAggregate, TypedDataInterface
- class \Drupal\tablefield\TableValue
- class \Drupal\Tests\Core\Plugin\Fixtures\Plugin\DataType\TestDataType
- class \Drupal\text\TextProcessed implements CacheableDependencyInterface

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Expanded class hierarchy of IssueItem in Simplenews 8

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