code: def add_one_func(x):
      return x + 1.0
  
imports: from bigdl.dllib.nncontext import *
  from bigdl.dllib.utils.log4Error import *
  from bigdl.dllib.keras.autograd import *
  from bigdl.dllib.keras.layers import *
  from bigdl.dllib.keras.models import *
  from optparse import OptionParser
label_desc: Use image node_id 2 for calling a global function with example usage: add_one_func(x) and returns: unknown