code: def __call__(self, ax, renderer):
      self.axes = ax
  
      fontsize = renderer.points_to_pixels(
          self.prop.get_size_in_points()
      )
      self._update_offset_func(renderer, fontsize)
  
      width, height, xdescent, ydescent = self.get_extent(renderer)
  
      px, py = self.get_offset(width, height, 0, 0, renderer)
      bbox_canvas = Bbox.from_bounds(px, py, width, height)
      tr = ax.figure.transFigure.inverted()
      bb = TransformedBbox(bbox_canvas, tr)
  
      return bb
  
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import warnings
  from matplotlib import docstring
  import six
  from matplotlib.offsetbox import AnchoredOffsetbox
  from matplotlib.patches import Patch, Rectangle
  from matplotlib.path import Path
  from matplotlib.transforms import Bbox, BboxTransformTo
  from matplotlib.transforms import IdentityTransform, TransformedBbox
  from .None import axes_size
  from .parasite_axes import HostAxes
label_desc: Use image node_id 3 for calling the AnchoredLocatorBase obj's underlying member method code with example usage: obj.__call__(ax, renderer) and returns: bb