code: def blit(self, bbox=None):
      agg_to_gtk_drawable(self._pixmap, self.renderer._renderer, bbox)
      x, y, w, h = self.allocation
      self.window.draw_drawable(
          self.style.fg_gc[self.state], self._pixmap, 0, 0, 0, 0, w, h
      )
  
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import six
  import matplotlib
  from matplotlib.cbook import warn_deprecated
  from matplotlib.backends.backend_agg import FigureCanvasAgg
  from matplotlib.backends.backend_gtk import gtk, _BackendGTK, FigureCanvasGTK, FigureManagerGTK, NavigationToolbar2GTK, backend_version, error_msg_gtk, PIXELS_PER_INCH
  from matplotlib.backends._gtkagg import agg_to_gtk_drawable
label_desc: Use image node_id 4 for calling the FigureCanvasGTKAgg obj's underlying member method code with example usage: obj.blit(bbox) without return types