
<span class="sd">            length.</span>
<span class="sd">        token2label : Dict[str, int]</span>
<span class="sd">            A dictionary mapping SMILES tokens to integer labels.</span>
<span class="sd">        &quot;&quot;&quot;</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">label_encoded_molecules</span> <span class="o">=</span> <span class="n">label_encoded_molecules</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">token2labe