docstr: Use cairo renderer.
docstr_tok: ["Use","cairo","renderer","."]
code: def _renderer_init(self):
      """Use cairo renderer."""
      self._renderer = RendererGTK3Cairo(self.figure.dpi)
  
file_path: catboost/contrib/python/matplotlib/py2/matplotlib/backends/backend_gtk3cairo.py
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import six
  from .None import backend_cairo, backend_gtk3
  from .backend_cairo import cairo, HAS_CAIRO_CFFI
  from .backend_gtk3 import _BackendGTK3
  from matplotlib.backend_bases import cursors
label_desc: Use image node_id 1 for calling the FigureCanvasGTK3Cairo obj's underlying member method code with example usage: obj._renderer_init() without return types