code: def _draw_mathtext(self, gc, x, y, s, prop, angle):
      ctx = gc.ctx
      (
          width,
          height,
          descent,
          glyphs,
          rects,
      ) = self.mathtext_parser.parse(s, self.dpi, prop)
  
      ctx.save()
      ctx.translate(x, y)
      if angle:
          ctx.rotate(np.deg2rad(-angle))
  
      for font, fontsize, s, ox, oy in glyphs:
          ctx.new_path()
          ctx.move_to(ox, oy)
  
          fontProp = ttfFontProperty(font)
          ctx.save()
          ctx.select_font_face(
              fontProp.name,
              self.fontangles[fontProp.style],
              self.fontweights[fontProp.weight],
          )
  
          size = fontsize * self.dpi / 72.0
          ctx.set_font_size(size)
          if not six.PY3 and isinstance(s, six.text_type):
              s = s.encode("utf-8")
          ctx.show_text(s)
          ctx.restore()
  
      for ox, oy, w, h in rects:
          ctx.new_path()
          ctx.rectangle(ox, oy, w, h)
          ctx.set_source_rgb(0, 0, 0)
          ctx.fill_preserve()
  
      ctx.restore()
  
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import six
  import gzip
  import sys
  import warnings
  import numpy
  from matplotlib.backend_bases import _Backend, FigureCanvasBase, FigureManagerBase, GraphicsContextBase, RendererBase
  from matplotlib.mathtext import MathTextParser
  from matplotlib.path import Path
  from matplotlib.transforms import Affine2D
  from matplotlib.font_manager import ttfFontProperty
label_desc: Use image node_id 10 for calling the RendererCairo obj's underlying member method code with example usage: obj._draw_mathtext(gc, x, y, s, prop, angle) without return types