def _build_repeats(self, in_channels, out_channels, lorder, hidden_size, repeats=1):
        """
        Builds repeated UniDeep FSMN layers.
        
        Args:
            in_channels (int): Number of input channels.
            out_channels (int): Number of output channels.
            lorder (int): Order of the filter for FSMN.
            hidden_size (int): Number of hidden units.
            repeats (int): Number of repetitions.
        
        Returns:
            Sequential: A sequential container with repeated layers.
        """
        repeats = [
            UniDeepFsmn(in_channels, out_channels, lorder, hidden_size)
            for i in range(repeats)
        ]
        return nn.Sequential(*repeats)

        Builds repeated UniDeep FSMN layers.
        
        Args:
            in_channels (int): Number of input channels.
            out_channels (int): Number of output channels.
            lorder (int): Order of the filter for FSMN.
            hidden_size (int): Number of hidden units.
            repeats (int): Number of repetitions.
        
        Returns:
            Sequential: A sequential container with repeated layers.
        
clearvoice/clearvoice/models/mossformer2_sr/mossformer2_block.py