"color:#000">StreamsLifecycleChain</span> <span style="color:#000">chain</span><span style="color:#ce5c00;font-weight:bold">)</span> <span style="color:#ce5c00;font-weight:bold">{</span>
        <span style="color:#8f5902;font-style:italic">// code here is executed before the streams is being started.
</span><span style="color:#8f5902;font-style:italic"></span>        <span style="color:#000">chain</span><span style="color:#ce5c00;font-weight:bold">.</span><span style="color:#c4a000">execute</span><span sty