code: def check_module(feature):
      if not (feature in modules):
          raise ValueError("Unknown module %s" % feature)
  
      module = modules[feature]
  
      try:
          __import__(module)
          return True
      except ImportError:
          return False
  
file_path: catboost/contrib/python/Pillow/py2/PIL/features.py
imports: from __future__ import print_function, unicode_literals
  import collections
  import os
  import sys
  import PIL
  from .None import Image
label_desc: Use image node_id 1 for calling a global function with example usage: check_module(feature) and returns: True, False