">: </span><a href="../index.html">Join</a></div></div><div class="content sourceset-dependent-content" data-active="" data-togglable=":couchbase-lite/commonMain"><div class="symbol monospace"><span class="token keyword">expect </span><span class="token keyword">fun </span><a href="on.html"><span class="token function">on</span></a><span class="token punctuation">(</span><span class="parameters "><span class="parameter ">expression<span class="token operator">: </span><a href="../../-expression/index.html">