code: def _on_phase_begin(self) -> None:
      if self.progress_bar:
          self.steps_progress_bar.reset()
  
imports: import math
  import sys
  import time
  import warnings
  from typing import Dict, Union
  from poutyne.framework.callbacks.progress_bar import ProgressBar
  from poutyne.utils import is_in_jupyter_notebook
label_desc: Use image node_id 5 for calling the ColorProgress obj's underlying member method code with example usage: obj._on_phase_begin() without return types