yword">fun </span><a href="add-metrics-observer.html"><span class="token function">addMetricsObserver</span></a><span class="token punctuation">(</span><span class="parameters "><span class="parameter ">observer<span class="token operator">: </span><a href="../../com.amazonaws.services.chime.sdk.meetings.audiovideo.metric/-metrics-observer/index.html">MetricsObserver</a></span></span><span class="token punctuation">)</span></div><div class="brief "><p class="paragraph">Subscribe to metrics events with an <a