text: import torch
  import typing
  
  class NoOp(torch.nn.ModuleDict):
      def __init__(self):
          super(NoOp, self).__init__()
  
      def forward(self, 
          tensors: typing.Dict[str, torch.Tensor]
      ) -> typing.Dict[str, torch.Tensor]:
          return torch.scalar_tensor(0.0), { }