code: def get_unpack_formats():
      """Returns a list of supported formats for unpacking.
  
      Each element of the returned sequence is a tuple
      (name, extensions, description)
      """
      formats = [
          (name, info[0], info[3])
          for name, info in _UNPACK_FORMATS.items()
      ]
      formats.sort()
      return formats
  
imports: import os
  import sys
  import stat
  import fnmatch
  import collections
  import errno
label_desc: Use image node_id 31 for calling a global function with example usage: get_unpack_formats() and returns: formats