code: def names_of_links(link):
      return set([name for name, _ in link.namedlinks(skipself=True)])
  
file_path: chainerrl/tests/links_tests/test_noisy_chain.py
imports: import unittest
  import chainer
  import chainer.testing
  import numpy
  import chainerrl
  from chainerrl.links import to_factorized_noisy
label_desc: Use image node_id 1 for calling a global function with example usage: names_of_links(link) and returns: set