docs: def import_deleted_fields(self, data):
          """
          Set data fields to deleted
          """
  
          if self.get_read_only() and self.is_locked():
              return
  
          if isinstance(data, str):
              data = [data]
  
          for key in data:
              if hasattr(self, key):
                  delattr(self, key)
                  continue
  
              keys = key.split('.', 1)
  
              if len(keys) != 2:
                  continue
  
              child = getattr(self, keys[0])
              child.import_deleted_fields(keys[1])