code: def _init_glyph(self, plot, mapping, properties, key):
      if key == "quad_1":
          properties.pop("size", None)
          mapping.pop("size", None)
      return super()._init_glyph(plot, mapping, properties, key)
  
file_path: holoviews/holoviews/plotting/bokeh/sankey.py
imports: import numpy
  import param
  from bokeh.models import Patches
  from ...core.data import Dataset
  from ...core.util import dimension_sanitizer, max_range
  from ...util.transform import dim
  from .graphs import GraphPlot
label_desc: Use image node_id 3 for calling the SankeyPlot obj's underlying member method code with example usage: obj._init_glyph(plot, mapping, properties, key) and returns: super