https://api.drupal.org/api/drupal/namespace/Drupal%21datetime_range%21Plugin%21Field%21FieldWidget/11.x
namespace Drupal\datetime_range\Plugin\Field\FieldWidget | Drupal API
namespacedrupaldatetimerangeplugin
https://api.drupal.org/api/drupal/namespace/Drupal%21media%21Plugin%21Field%21FieldWidget/8.9.x
namespace Drupal\media\Plugin\Field\FieldWidget | Drupal API
namespacedrupalmediapluginfield
https://api.drupal.org/api/drupal/core%21lib%21Drupal%21Core%21Field%21Attribute%21FieldWidget.php/class/FieldWidget/10
class FieldWidget | Drupal API
classdrupalapi
https://api.drupal.org/api/drupal/namespace/Drupal%21field_test%21Plugin%21Field%21FieldWidget/10
namespace Drupal\field_test\Plugin\Field\FieldWidget | Drupal API
field testnamespacedrupalpluginapi
https://api.drupal.org/api/drupal/namespace/Drupal%21comment%21Plugin%21Field%21FieldWidget/9
namespace Drupal\comment\Plugin\Field\FieldWidget | Drupal API
namespacedrupalcommentpluginfield
https://api.drupal.org/api/drupal/namespace/Drupal%21telephone%21Plugin%21Field%21FieldWidget/9
namespace Drupal\telephone\Plugin\Field\FieldWidget | Drupal API
namespacedrupaltelephonepluginfield
https://api.drupal.org/api/drupal/namespace/Drupal%21link%21Plugin%21Field%21FieldWidget/8.9.x
namespace Drupal\link\Plugin\Field\FieldWidget | Drupal API
namespacedrupalpluginfieldapi