code: def main_example(circuit):
      fig, ax = draw_mpl(circuit)(1.2345, 1.2345)
  
      plt.savefig(folder / "main_example.png")
      plt.close()
  
file_path: pennylane/doc/_static/draw_mpl/draw_mpl_examples.py
imports: import pathlib
  import matplotlib.pyplot
  import pennylane
  from pennylane import draw_mpl
label_desc: Use image node_id 1 for calling a global function with example usage: main_example(circuit) without return types