code: def _create_cache(self):
      self._it_cls = self.__orig_class__.__args__[0]
      if self._cache is None:
          self._cache = self.query.all()
  
file_path: aim/aim/storage/structured/sql_engine/utils.py
imports: from abc import ABCMeta
  from typing import Iterator, Collection, TypeVar, Union, Callable
  from sqlalchemy import text
label_desc: Use image node_id 2 for calling the ModelMappedCollection obj's underlying member method code with example usage: obj._create_cache() without return types