add demo.py for all kws models (#2107)

sugarcase

2024-09-25 8cd8e25f180b57c74f1ae7fd39001e5af4c20f8b

 funasr/models/transformer/positionwise_feed_forward.py

@@ -34,3 +34,15 @@
        return self.w_2(self.dropout(self.activation(self.w_1(x))))


class PositionwiseFeedForwardDecoderSANMExport(torch.nn.Module):
    def __init__(self, model):
        super().__init__()
        self.w_1 = model.w_1
        self.w_2 = model.w_2
        self.activation = model.activation
        self.norm = model.norm

    def forward(self, x):
        x = self.activation(self.w_1(x))
        x = self.w_2(self.norm(x))
        return x