code: def _get_label(self):
      return self._axis.label
  
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import six
  import matplotlib.axes
  from matplotlib.artist import Artist
  from matplotlib.axis import XAxis, YAxis
label_desc: Use image node_id 4 for calling the SimpleAxisArtist obj's underlying member method code with example usage: obj._get_label() and returns: self