docs: def delete(self, force=False):
          """Delete a workflow object.
  
          If `force` is ``False``, the record is soft-deleted, i.e. the record
          stays in the database. This ensures e.g. that the same record
          identifier cannot be used twice, and that you can still retrieve the
          history of an object. If `force` is True, the record is completely
          removed from the database.
  
          :param force: Completely remove record from database.
          """
          if self.model is None:
              raise WorkflowsMissingModel()
  
          with db.session.begin_nested():
              db.session.delete(self.model)
  
          return self