code: def test_choice_loader(self, prefix_loader):
      self.compile_down(prefix_loader)
      self.mod_env.loader = loaders.ChoiceLoader(
          [
              self.mod_env.loader,
              loaders.DictLoader({"DICT_SOURCE": "DICT_TEMPLATE"}),
          ]
      )
      tmpl1 = self.mod_env.get_template("a/test.html")
      assert tmpl1.render() == "BAR"
      tmpl2 = self.mod_env.get_template("DICT_SOURCE")
      assert tmpl2.render() == "DICT_TEMPLATE"
  
imports: import importlib.abc
  import importlib.machinery
  import importlib.util
  import os
  import platform
  import shutil
  import sys
  import tempfile
  import time
  import weakref
  from pathlib import Path
  import pytest
  from jinja2 import Environment
  from jinja2 import loaders
  from jinja2 import PackageLoader
  from jinja2.exceptions import TemplateNotFound
  from jinja2.loaders import split_template_path
  import yatest.common
label_desc: Use image node_id 9 for calling the TestModuleLoader obj's underlying member method code with example usage: obj.test_choice_loader(prefix_loader) without return types