code: def call(self, *args, **kwargs):
      for module in self.submodules.values():
          args = module(*args, **kwargs)
          result = args
          if args is not None:
              if not isinstance(args, tuple):
                  args = (args,)
  
      return result
  
imports: import nnabla
label_desc: Use image node_id 2 for calling the Sequential obj's underlying member method code with example usage: obj.call() and returns: result