  input_lengths (torch.LongTensor): The length of input tensor. ``(batch)``</span>

<span class="sd">    Returns:</span>
<span class="sd">        (Tensor, Tensor):</span>

<span class="sd">        * outputs (torch.FloatTensor): Log probability of model predictions.  ``(batch, seq_length, num_classes)``</span>
<span class="sd">        * output_lengths (torch.LongTensor): The length of output tensor ``(batch)``</span>

<span class="sd">    Reference:</span>
<span class="sd">        Samuel Kriman et al.: QUART