code: def get_size(self, renderer):
      sum_rel_size = sum([a.get_size(renderer)[0] for a in self._list])
      sum_abs_size = sum([a.get_size(renderer)[1] for a in self._list])
      return sum_rel_size, sum_abs_size
  
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import six
  import matplotlib.cbook
  from matplotlib.axes import Axes
label_desc: Use image node_id 2 for calling the AddList obj's underlying member method code with example usage: obj.get_size(renderer) and returns: sum_rel_size,  sum_abs_size