code: def restore_func(name):
      if name not in __all__:
          raise ValueError("%s not a dual function." % name)
      try:
          val = _restore_dict[name]
      except KeyError:
          return
      else:
          sys._getframe(0).f_globals[name] = val
  
imports: from __future__ import division, absolute_import, print_function
  import numpy.linalg
  import numpy.fft
  from numpy.lib import i0
  import sys
label_desc: Use image node_id 2 for calling a global function with example usage: restore_func(name) without return types