code: def _init_glyph(self, plot, mapping, properties, key):
      ret = super()._init_glyph(plot, mapping, properties, key)
      if self.colorbar and "color_mapper" in self.handles:
          self._draw_colorbar(plot, self.handles["color_mapper"])
      return ret
  
imports: import numpy
  import param
  from bokeh.models.glyphs import AnnularWedge
  from ...core.data import GridInterface
  from ...core.spaces import HoloMap
  from ...core.util import dimension_sanitizer, is_nan
  from .element import ColorbarPlot, CompositeElementPlot
  from .selection import BokehOverlaySelectionDisplay
  from .styles import base_properties, fill_properties, line_properties, text_properties
label_desc: Use image node_id 17 for calling the RadialHeatMapPlot obj's underlying member method code with example usage: obj._init_glyph(plot, mapping, properties, key) and returns: ret