code: def image(self, render_mode):
          
          if render_mode == RenderMode.SEGMASK:
              return self.query_im
          elif render_mode == RenderMode.COLOR:
              return self.color_im
          elif render_mode == RenderMode.DEPTH:
              return self.depth_im
          else:
              raise ValueError('Render mode %s not supported' %(render_mode))
docs: Get the image associated with a particular render mode