 popup-to-left"><span class="copy-popup-icon"></span><span>Content copied to clipboard</span></div></span></div></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="set-document-expiration.html"><span class="token function"><strike>setDocumentExpiration</strike></span></a><span class="token punctuation">(</span><span class=