old_contents: #!/usr/bin/env python
  
  """Tests of spout managers."""
  
  import os
  import tempfile
  
  import grpc
  import pytest
  
  import python_pachyderm
  from tests import util
  
  def test_spout_manager():
      with tempfile.TemporaryDirectory(suffix="pachyderm") as d:
          with SpoutManager(pfs_directory=d) as spout:
              spout.add_from_bytes("foo.txt", b"bar")
              spout.add_marker_from_bytes(b"marker")
              with spout.marker() as f:
                  assert f.read() == b"marker"
  
new_contents: #!/usr/bin/env python
  
  """Tests of spout managers."""
  
  import tempfile
  
  import python_pachyderm
  
  
  def test_spout_manager():
      with tempfile.TemporaryDirectory(suffix="pachyderm") as d:
          with python_pachyderm.SpoutManager(pfs_directory=d) as spout:
              spout.add_from_bytes("foo.txt", b"bar")
              spout.add_marker_from_bytes(b"marker")
              with spout.marker() as f:
                  assert f.read() == b"marker"
  
subject: Fix imports