code: def __call__(self, transform_xy, x1, y1, x2, y2):
      # docstring inherited
      return self._extremes
  
imports: import functools
  import numpy
  import matplotlib
  from matplotlib import _api, cbook
  import matplotlib.patches
  from matplotlib.path import Path
  from mpl_toolkits.axes_grid1.parasite_axes import host_axes_class_factory
  from .None import axislines, grid_helper_curvelinear
  from .axis_artist import AxisArtist
  from .grid_finder import ExtremeFinderSimple
label_desc: Use image node_id 2 for calling the ExtremeFinderFixed obj's underlying member method code with example usage: obj.__call__(transform_xy, x1, y1, x2, y2) and returns: self