code: def _init_glyphs(self, plot, element, ranges, source):
      super()._init_glyphs(plot, element, ranges, source)
      self._draw_markers(plot, element, self.xmarks, axis="x")
      self._draw_markers(plot, element, self.ymarks, axis="y")
  
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 6 for calling the HeatMapPlot obj's underlying member method code with example usage: obj._init_glyphs(plot, element, ranges, source) without return types