code: def copy_from_bbox(self, bbox):
      surface = self._renderer.gc.ctx.get_target()
      if not isinstance(surface, cairo.ImageSurface):
          raise RuntimeError(
              "copy_from_bbox only works when rendering to an ImageSurface"
          )
      sw = surface.get_width()
      sh = surface.get_height()
      x0 = math.ceil(bbox.x0)
      x1 = math.floor(bbox.x1)
      y0 = math.ceil(sh - bbox.y1)
      y1 = math.floor(sh - bbox.y0)
      if not (
          0 <= x0
          and x1 <= sw
          and bbox.x0 <= bbox.x1
          and 0 <= y0
          and y1 <= sh
          and bbox.y0 <= bbox.y1
      ):
          raise ValueError("Invalid bbox")
      sls = slice(y0, y0 + max(y1 - y0, 0)), slice(
          x0, x0 + max(x1 - x0, 0)
      )
      data = (
          np.frombuffer(surface.get_data(), np.uint32)
          .reshape((sh, sw))[sls]
          .copy()
      )
      return _CairoRegion(sls, data)
  
imports: import functools
  import gzip
  import math
  import numpy
  from ..None import _api, cbook, font_manager
  from matplotlib.backend_bases import _Backend, FigureCanvasBase, FigureManagerBase, GraphicsContextBase, RendererBase
  from matplotlib.font_manager import ttfFontProperty
  from matplotlib.path import Path
  from matplotlib.transforms import Affine2D
label_desc: Use image node_id 3 for calling the FigureCanvasCairo obj's underlying member method code with example usage: obj.copy_from_bbox(bbox) and returns: _CairoRegion