code: def forward(self, x):
      if self.stride == 1:
          return x.mul(0.0)
      return x[:, :, :: self.stride, :: self.stride].mul(0.0)
  
imports: import torch.nn
label_desc: Use image node_id 2 for calling the Zero obj's underlying member method code with example usage: obj.forward(x) and returns: x, x