code: def test_get_plot_id():
      assert (
          get_plot_id("plot_id", "config_path")
          == "config_path::plot_id"
      )
      assert get_plot_id("plot_id", "") == "plot_id"
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_get_plot_id() without return types