ion</h4>    
    <code class="language-swift">init?(_ utf8Index: UTF8Index, within unicodeScalars: String.UnicodeScalarView)</code>

    </div></div>
</div>
<div class="declaration" id="init_-utf16index-within_-string-unicodescalarview">
<a class="toggle-link" data-toggle="collapse" href="#comment-init_-utf16index-within_-string-unicodescalarview">init?(<wbr>_:<wbr> UTF16Index, within: String.UnicodeScalarView)</a><div class="comment collapse" id="comment-init_-utf16index-within_-string-unicodescalarview"><