code: def clear_matplotlib_ticks(ax=None, axis="both"):
      
      if not ax:
          return
      if axis.lower() in ["both", "x", "horizontal"]:
          ax.set_xticks([], [])
      if axis.lower() in ["both", "y", "vertical"]:
          ax.set_yticks([], [])
docs: Clears the default matplotlib axes, or the one specified by the axis
      argument.
  
      Parameters
      ----------
      ax: Matplotlib AxesSubplot, None
          The subplot to draw on.
      axis: string, "both"
          The axis to clear: "x" or "horizontal", "y" or "vertical", or "both"