trait MenuLinkFieldDefinitions

trait MenuLinkFieldDefinitions {
  
  /**
   * Provides some default values for the definition of all menu link plugins.
   *
   * @var array
   */
  protected $defaults = [
    // (required) The name of the menu for this link.
'menu_name' => 'tools',
    // (required) The name of the route this links to, unless it's external.
'route_name' => '',
    // Parameters for route variables when generating a link.
'route_parameters' => [],
    // The external URL if this link has one (required if route_name is empty).
'url' => '',
    // The static title for the menu link. If this came from a YAML definition
    // or other safe source this may be a TranslatableMarkup object.
'title' => '',
    // The description. If this came from a YAML definition or other safe source
    // this may be be a TranslatableMarkup object.
'description' => '',
    // The plugin ID of the parent link (or NULL for a top-level link).
'parent' => '',
    // The weight of the link.
'weight' => 0,
    // The default link options.
'options' => [],
    'expanded' => 0,
    'enabled' => 1,
    // The name of the module providing this link.
'provider' => '',
    'metadata' => [],
    // Default class for local task implementations.
'class' => 'Drupal\\Core\\Menu\\MenuLinkDefault',
    'form_class' => 'Drupal\\Core\\Menu\\Form\\MenuLinkDefaultForm',
    // The plugin ID. Set by the plugin system based on the top-level YAML key.
'id' => '',
  ];

}