code: def set_encoding(self, encoding):
      self._bar_ends = ("", "")
      self._bar_symbols = ">"
  
file_path: h2o-3/h2o-py/tests/testdir_misc/pyunit_job_progress_custom_widget.py
imports: from builtins import range
  import sys
  import h2o
  from h2o.job import H2OJob
  from h2o.utils.progressbar import ProgressBar, ProgressBarWidget, PBWBar, PBWString, RenderResult
  from tests import pyunit_utils
label_desc: Use image node_id 1 for calling the MyPWBar obj's underlying member method code with example usage: obj.set_encoding(encoding) without return types