block9.py

class MyCNNClassifier(nn.Module):
    def __init__(self, in_c, n_classes):
        super().__init__()
        self.encoder = nn.Sequential(
            conv_block(in_c, 32, kernel_size=3, padding=1),
            conv_block(32, 64, kernel_size=3, padding=1)
        )

        
        self.decoder = nn.Sequential(
            nn.Linear(32 * 28 * 28, 1024),
            nn.Sigmoid(),
            nn.Linear(1024, n_classes)
        )

        
    def forward(self, x):
        x = self.encoder(x)
        
        x = x.view(x.size(0), -1) # flat
        
        x = self.decoder(x)
        
        return x