code: def draw_sizebar(ax):
      """
      Draw a horizontal bar with length of 0.1 in data coordinates,
      with a fixed label underneath.
      """
      from mpl_toolkits.axes_grid1.anchored_artists import (
          AnchoredSizeBar,
      )
  
      asb = AnchoredSizeBar(
          ax.transData,
          0.1,
          r"1$^{\prime}$",
          loc="lower center",
          pad=0.1,
          borderpad=0.5,
          sep=5,
          frameon=False,
      )
      ax.add_artist(asb)
  
imports: import matplotlib.pyplot
label_desc: Use image node_id 3 for calling a global function with example usage: draw_sizebar(ax) without return types