def gca(**kwargs):
ax =  gcf().gca(**kwargs)<EOL>return ax<EOL>
Return the current axis instance.  This can be used to control
axis properties either using set or the
:class:`~matplotlib.axes.Axes` methods, for example, setting the
xaxis range::

  plot(t,s)
  set(gca(), 'xlim', [0,10])

or::

  plot(t,s)
  a = gca()
  a.set_xlim([0,10])