code: def test_git_client_repository(self, environment):
      with neptune.init_run(
          git_ref=GitRef(repository_path="."),
          project=environment.project,
      ) as exp:
          # download sources
          exp.sync()
          assert exp.exists("source_code/git")
  
      with neptune.init_run(
          git_ref=True,
          project=environment.project,
      ) as exp:
          # download sources
          exp.sync()
          assert exp.exists("source_code/git")
  
imports: import pytest
  import neptune
  from neptune.exceptions import NeptuneModelKeyAlreadyExistsError
  from neptune.metadata_containers import Model, Project
  from neptune.types import GitRef
  from tests.e2e.base import AVAILABLE_CONTAINERS, BaseE2ETest, fake
  from tests.e2e.utils import initialize_container, reinitialize_container, with_check_if_file_appears
label_desc: Use image node_id 3 for calling the TestInitRun obj's underlying member method code with example usage: obj.test_git_client_repository(environment) without return types