pan class="nb">len</span><span class="p">(</span><span class="n">samp</span><span class="p">[</span><span class="mi">1</span><span class="p">]):</span>
</span><span id="BaseNetFeeder-68"><a href="#BaseNetFeeder-68"><span class="linenos">68</span></a>            <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="sa">f</span><span class="s1">&#39;BaseNetFeeder:__init__: The return value of the </span><span class="si">{</span><span class="bp">self</span><span cl