ntegers representing the SMILES</span>
<span class="sd">    tokens, and `y` is the same sequence shifted by one position to the</span>
<span class="sd">    right.</span>

<span class="sd">    The outputs are padded to the same length and label encoded.</span>
<span class="sd">    &quot;&quot;&quot;</span>

    <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span>
        <span class="bp">self</span><span class="p">,</span>
        <span class="n">label_encoded_molecules</span><