n> <span class="n">pack</span><span class="p">,</span> <span class="n">unpack</span>
</span><span id="L-13"><a href="#L-13"><span class="linenos">13</span></a><span class="kn">from</span> <span class="nn">ourheroes.data.types</span> <span class="kn">import</span> <span class="n">SentenceTensor</span>
</span><span id="L-14"><a href="#L-14"><span class="linenos">14</span></a>
</span><span id="L-15"><a href="#L-15"><span class="linenos">15</span></a>
</span><span id="L-16"><a href="#L-16"><span class="linenos"