WorkspaceOperationInterface

class \Drupal\workspaces\WorkspaceMerger implements \Drupal\workspaces\WorkspaceMergerInterface
class \Drupal\workspaces\WorkspacePublisher implements \Drupal\workspaces\WorkspacePublisherInterface uses \Drupal\Core\StringTranslation\StringTranslationTrait

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.