Question about the baseline model about restormer HOT 1 CLOSED

class Resblock(nn.Module):
    def __init__(self, dim, bias):
        super(Resblock, self).__init__()

        self.body = nn.Sequential(nn.Conv2d(dim, dim, kernel_size=3, stride=1, padding=1, bias=False),
                                  nn.LeakyReLU(0.2),
                                  nn.Conv2d(dim, dim, kernel_size=3, stride=1, padding=1, bias=False)
                                 )

    def forward(self, x):
        x = x + self.body(x)
        return x