code: def _download_file(self, remote_file_path, local_path):
      assert remote_file_path.endswith(_MODEL_FILE)
  
imports: import posixpath
  import time
  from unittest import mock
  import pytest
  from mlflow.entities import FileInfo
  from mlflow.exceptions import MlflowException
  from mlflow.store.artifact.artifact_repo import ArtifactRepository
  from mlflow.utils.file_utils import TempDir
label_desc: Use image node_id 4 for calling the ArtifactRepositoryImpl obj's underlying member method code with example usage: obj._download_file(remote_file_path, local_path) without return types