code: def copy(self):
          
          copied = Trimesh()
  
          # copy vertex and face data
          copied._data.data = copy.deepcopy(self._data.data)
          # copy visual information
          copied.visual = self.visual.copy()
          # get metadata
          copied.metadata = copy.deepcopy(self.metadata)
          # get center_mass and density
          if self._center_mass is not None:
              copied.center_mass = self.center_mass
          copied._density = self._density
  
          # make sure cache is set from here
          copied._cache.clear()
  
          return copied
docs: Safely get a copy of the current mesh.
  
          Copied objects will have emptied caches to avoid memory
          issues and so may be slow on initial operations until
          caches are regenerated.
  
          Current object will *not* have its cache cleared.
  
          Returns
          ---------
          copied : trimesh.Trimesh
            Copy of current mesh