    def argmax(self, hs_pad: torch.Tensor) -> torch.Tensor:
        """argmax of frame activations

        Args:
            torch.Tensor hs_pad: 3d tensor (B, Tmax, eprojs)
        Returns:
            torch.Tensor: argmax applied 2d tensor (B, Tmax)
        """
        return torch.argmax(self.ctc_lo(hs_pad), dim=2)
argmax of frame activations

Args:
torch.Tensor hs_pad: 3d tensor (B, Tmax, eprojs)
Returns:
torch.Tensor: argmax applied 2d tensor (B, Tmax)
modules/wenet_extractor/transformer/ctc.py