   <span class="sympad">onProducerEvent</span>
      <span class="normal">(String requestId, String producerName, String eventName)</span>
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    <div class="jd-details-descr">
      
  <div class="jd-tagdata jd-tagdescr"><p>Called whenever an important producer-specific event occurs. This may only be called if
 onProducerStart has been called, but corresponding onProducerFinishWith* method has not been
 called yet.
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