code: def example_plot(ax, fontsize=12, hide_labels=False):
      pc = ax.pcolormesh(np.random.randn(30, 30), vmin=-2.5, vmax=2.5)
      if not hide_labels:
          ax.set_xlabel("x-label", fontsize=fontsize)
          ax.set_ylabel("y-label", fontsize=fontsize)
          ax.set_title("Title", fontsize=fontsize)
      return pc
  
label_desc: Use image node_id 1 for calling a global function with example usage: example_plot(ax, fontsize, hide_labels) and returns: pc