code: def convert(self, vroot, entry_variables):
          
          self.graph_info = GraphInfo(vroot)
          self.entry_variables = entry_variables
  
          with nn.parameter_scope(self.name):
              # Function loop in the forward order
              for t, func in enumerate(self.graph_info.funcs):
                  # Activation check
                  if func.name in self.activation_functions:
                      activation_func = func
                      o = self._fixed_point_activation_conversion(
                          activation_func)
                      continue
                  # Identity conversion
                  o = self._identity_conversion(func)
  
          self.end_variable = o
          return self.end_variable
docs: All functions are replaced with the same `new` function.
  
          Args:
              vroot (:obj:`Variable`): NNabla Variable
              entry_variables (:obj:`Variable`): Entry variable from which the conversion starts.