def forward(self, x1, x2):
    x = (x1 - x2)
    x = torch.relu(self.norm1(self.dense1(x)))
    x = x.view(x.size(0), (- 1))
    x = torch.relu(self.norm2(self.dense2(x)))
    x = torch.relu(self.dense3(x))
    return x
def forward(self, x1, x2):
    x = (x1 - x2)
    x = torch.relu(self.norm1(self.dense1(x)))
    x = x.view(x.size(0), (- 1))
    x = torch.relu(self.norm2(self.dense2(x)))
    x = torch.relu(self.dense3(x))
    return x