class_docstr: Dummy mock object that wraps a CacheMixin.
class_docstr_tok: ["Dummy","mock","object","that","wraps","a","CacheMixin","."]
code: def run(self):
      self._cache(f)
  
file_path: nilearn/nilearn/_utils/tests/test_cache_mixin.py
imports: import os
  import shutil
  from pathlib import Path
  import pytest
  from joblib import Memory
  import nilearn
  from nilearn._utils import CacheMixin, cache_mixin
label_desc: Use image node_id 2 for calling the CacheMixinTest obj's underlying member method code with example usage: obj.run() without return types