code: def tags(self):
      return {MLFLOW_GIT_COMMIT: self._source_version}
  
file_path: mlflow/mlflow/tracking/context/git_context.py
imports: import logging
  from mlflow.tracking.context.abstract_context import RunContextProvider
  from mlflow.tracking.context.default_context import _get_main_file
  from mlflow.utils.git_utils import get_git_commit
  from mlflow.utils.mlflow_tags import MLFLOW_GIT_COMMIT
label_desc: Use image node_id 4 for calling the GitRunContext obj's underlying member method code with example usage: obj.tags() and returns: dict