code: def _load_data(self, data, from_db=False):
          
          self._data = data[:]
          self.setattrs(
              values=[],
              node_stack=[],
              node_dict={},
          )
          self._from_db = from_db
docs: Stores the data at self._data, actual object creation done at _generate_instances()
  
          Args:
              data (list): List of dicts.
              from_db (bool): Default False. Is this data coming from DB or not.