code: def addScalarBar3D(
          self,
          obj=None,
          at=0,
          pos=(0, 0, 0),
          normal=(0, 0, 1),
          sx=0.1,
          sy=2,
          nlabels=9,
          ncols=256,
          cmap=None,
          c=None,
          alpha=1,
      ):
          
          return addons.addScalarBar3D(obj, at, pos, normal, sx, sy, nlabels, ncols, cmap, c, alpha)
docs: Draw a 3D scalar bar.
  
          ``obj`` input can be:
              - a list of numbers,
              - a list of two numbers in the form `(min, max)`,
              - a ``vtkActor`` already containing a set of scalars associated to vertices or cells,
              - if ``None`` the last actor in the list of actors will be used.
  
          .. hint:: |scalbar| |mesh_coloring.py|_