message: Shut up warnings about markers.
diff: @@ -22,7 +22,7 @@ def _add_mark(mark, bucket): # type: (Any, Text) -> None
  def pytest_runtest_call(item): # type: (pytest.nodes.Item) -> None
  - mark = item.get_marker('onnx_coverage')
  + mark = item.get_closest_marker('onnx_coverage')
  if mark:
  assert item.nodeid not in _marks
  _marks[item.nodeid] = mark
  