human
4. Refactored ConvNet

Can you provide a the Python code you requested?
assistant
#Here is the Python code you requested.
class ConvLayer(nn.Module):
    def __init__(self, ni, nf):
        super().__init__()
        self.conv = nn.Conv2d(ni, nf, kernel_size=3, stride=2, padding=1)
        
    def forward(self, x):
        return F.relu(self.conv(x))