code: def Glob(pattern):
      return gfile.Glob(pattern)
  
file_path: deepvariant/third_party/nucleus/io/gfile.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import six
  from third_party.nucleus.io.python import gfile
label_desc: Use image node_id 2 for calling a global function with example usage: Glob(pattern) and returns: gfile