code: def main(_):
      optimize_club(num_steps=30)
  
file_path: jraph/jraph/examples/zacharys_karate_club.py
imports: import logging
  from absl import app
  import haiku
  import jax
  import jax.numpy
  import jraph
  import optax
label_desc: Use image node_id 5 for calling a global function with example usage: main(_) without return types