code: def unify_walk(bv, o, U):
      """
      The unification succeed iff BV.value == other_object.
  
      """
      if bv.value == o:
          return U
      else:
          return False
  
imports: from __future__ import absolute_import, print_function, division
  from copy import copy
  from functools import partial
  from theano.gof.utils import ANY_TYPE, comm_guard, FALL_THROUGH, iteritems
label_desc: Use image node_id 4 for calling a global function with example usage: unify_walk(bv, o, U) and returns: U, False