pan></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 class="o">.</span><span class="n">feeder</span><span class="o">.</span><span class="vm">__name__</span><span class="si">}</span><span class="s1"> function is not a&#39;</span>
</span><span id="BaseNetFeeder-66"><a href="#BaseNetFeeder-66"><span