code: def colorbar(self, mappable, **kwargs):
      return self.figure.colorbar(
          mappable, cax=self, location=self.orientation, **kwargs
      )
  
imports: from numbers import Number
  import functools
  from types import MethodType
  import numpy
  from matplotlib import _api, cbook
  from matplotlib.gridspec import SubplotSpec
  from .axes_divider import Size, SubplotDivider, Divider
  from .mpl_axes import Axes, SimpleAxisArtist
label_desc: Use image node_id 2 for calling the CbarAxesBase obj's underlying member method code with example usage: obj.colorbar(mappable) and returns: self