i/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines/-coroutine-scope/index.html">CoroutineScope</a> that is canceled when the listener is removed.</p><span class="kdoc-tag"><h4 class="">Return</h4><p class="paragraph">An opaque listener token object for removing the listener.</p></span><h4 class="">Parameters</h4><div class="table"><div class="table-row" data-filterable-current=":couchbase-lite/commonMain" data-filterable-set=":couchbase-lite/commonMain"><div class="main-subrow keyValue "><div c