code: def clear_artists(self, stream_vis):
      for artist in stream_vis.wedge_artists:
          artist.remove()
      stream_vis.wedge_artists.clear()
  
file_path: tensorwatch/tensorwatch/mpl/pie_chart.py
imports: from .base_mpl_plot import BaseMplPlot
  from ..None import image_utils
  from ..None import utils
  import numpy
label_desc: Use image node_id 2 for calling the PieChart obj's underlying member method code with example usage: obj.clear_artists(stream_vis) without return types