code: def __str__(self):
      return "FileHandle(%d)" % self.fno
  
imports: import errno
  import locale
  import logging
  import os
  import stat
  import sys
  import time
  from optparse import Option, OptionParser
  import nibabel
  import nibabel.dft
label_desc: Use image node_id 2 for calling the FileHandle obj's underlying member method code with example usage: obj.__str__() and returns: unknown