code: def main(argv):
      del argv
      generate_graph()
  
file_path: neural-structured-learning/research/a2n/generate_random_graph.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from absl import app
  from absl import flags
  import numpy
label_desc: Use image node_id 2 for calling a global function with example usage: main(argv) without return types