code: def _format_unequal_keys(dicts):
      return pformat([sorted(d.keys()) for d in dicts])
  
file_path: catalyst/catalyst/utils/functional.py
imports: from functools import reduce
  from pprint import pformat
  from six import viewkeys
  from six.moves import map, zip
  from toolz import curry, flip
  from .sentinel import sentinel
label_desc: Use image node_id 4 for calling a global function with example usage: _format_unequal_keys(dicts) and returns: pformat