code: def geometry_from_plot(self, p):
      from itertools import groupby, chain
  
      def flatten(ll):
          return list(chain.from_iterable(ll))
  
      p.triangulate()
  
      g = FaceGeometry()
      g.vertices = flatten(p.vertices())
      f = p.index_faces()
      f.sort(key=len)
      faces = {k: flatten(v) for k, v in groupby(f, len)}
      g.face3 = faces.get(3, [])
      g.face4 = faces.get(4, [])
      return g
  
imports: from ipywidgets import Widget, widget_serialization
  from traitlets import Unicode, CInt, Instance, List, CFloat, Bool, observe, validate
  import numpy
  from ._package import npm_pkg_name
  from ._version import EXTENSION_SPEC_VERSION
  from .core.BufferAttribute import BufferAttribute
  from .core.Geometry import Geometry
  from .core.BufferGeometry import BufferGeometry
  from .geometries.BoxGeometry_autogen import BoxGeometry
  from .geometries.SphereGeometry_autogen import SphereGeometry
  from .lights.AmbientLight_autogen import AmbientLight
  from .lights.DirectionalLight_autogen import DirectionalLight
  from .materials.Material_autogen import Material
  from .materials.MeshLambertMaterial_autogen import MeshLambertMaterial
  from .materials.SpriteMaterial_autogen import SpriteMaterial
  from .objects.Group_autogen import Group
  from .objects.Line_autogen import Line
  from .objects.Mesh_autogen import Mesh
  from .objects.Sprite_autogen import Sprite
  from .textures.Texture_autogen import Texture
  from .textures.DataTexture import DataTexture
  from .textures.TextTexture_autogen import TextTexture
label_desc: Use image node_id 6 for calling the PlotMesh obj's underlying member method code with example usage: obj.geometry_from_plot(p) and returns: g, list