_ptr&lt;paddle::framework::ExecutorPrepareContext&gt; ctx; <span class="comment">/* [fluid]</span></div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;<span class="comment">                                                                      context */</span></div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;  std::string feed_holder_name; <span class="comment">/* [fluid] feed holder name when predict, unique</span></div><div class="line"><a n