code: def get_canvas(self, fig):
      return FigureCanvasWxCairo(self, -1, fig)
  
file_path: catboost/contrib/python/matplotlib/py2/matplotlib/backends/backend_wxcairo.py
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import six
  import wx
  from .backend_cairo import cairo, FigureCanvasCairo, RendererCairo
  from .backend_wx import _BackendWx, _FigureCanvasWxBase, FigureFrameWx, NavigationToolbar2Wx
  import wx.lib.wxcairo
label_desc: Use image node_id 1 for calling the FigureFrameWxCairo obj's underlying member method code with example usage: obj.get_canvas(fig) and returns: FigureCanvasWxCairo