code: def storage(self, request, arti_id=None):
      fname = request.args.get("file")
      if arti_id is None:
          arti_id = "unknown_id"
      if request.method == "PUT":
          data = request.get_data(as_text=True)
          if self._files.get(arti_id) is None:
              self._files[arti_id] = {}
          self._files[arti_id][fname] = data
      data = ""
      if request.method == "GET":
          data = self._files[arti_id][fname]
      return data, 200
  
file_path: wandb/tests/pytest_tests/unit_tests_old/utils/artifact_emu.py
imports: import copy
label_desc: Use image node_id 7 for calling the ArtifactEmulator obj's underlying member method code with example usage: obj.storage(request, arti_id) and returns: data,  int