code: def create_artists(
      self,
      legend,
      orig_handle,
      xdescent,
      ydescent,
      width,
      height,
      fontsize,
      trans,
  ):
      center = (
          0.5 * width - 0.5 * xdescent,
          0.5 * height - 0.5 * ydescent,
      )
      p = mpatches.Ellipse(
          xy=center, width=width + xdescent, height=height + ydescent
      )
      self.update_prop(p, orig_handle, legend)
      p.set_transform(trans)
      return [p]
  
file_path: matplotlib/galleries/users_explain/axes/legend_guide.py
imports: import matplotlib.pyplot
  import matplotlib.patches
  import matplotlib.lines
  from matplotlib.legend_handler import HandlerLine2D
  from numpy.random import randn
  from matplotlib.legend_handler import HandlerLine2D, HandlerTuple
  import matplotlib.patches
  from matplotlib.legend_handler import HandlerPatch
label_desc: Use image node_id 1 for calling the HandlerEllipse obj's underlying member method code with example usage: obj.create_artists(legend, orig_handle, xdescent, ydescent, width, height, fontsize, trans) and returns: list