code: def _postprocess_hover(self, renderer, source):
      if self.inspection_policy == "edges":
          if not isinstance(renderer.glyph, Patches):
              return
      elif isinstance(renderer.glyph, Patches):
          return
      super()._postprocess_hover(renderer, source)
  
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 10 for calling the SankeyPlot obj's underlying member method code with example usage: obj._postprocess_hover(renderer, source) without return types