t contains all functions that you will use. We don't set the path of this <code>.py</code> file
directly in the YAML, but pass it as na argument to GenFlow when executing the graph (as explained below).</p>
<h4 id="llm-service-nodes">LLM Service Nodes<a class="headerlink" href="#llm-service-nodes" title="Permanent link">&para;</a></h4>
<p>Used to interact with language model services like OpenAI's GPT models.</p>
<p><strong>Example:</strong></p>
<div class="codehilite"><pre><span></span><code><span class="p