package as follows:</p>
<pre class="language-dart"><code class="language-dart">import 'package:upi_pay/upi_pay.dart';
</code></pre>
<h3 id="ios-configuration">iOS configuration</h3>
<p>In <code>Runner/Info.plist</code> add or modify the <code>LSApplicationQueriesSchemes</code> key so it includes custom query schemes shown as follows:</p>
<pre class="language-xml"><code class="language-xml">  &lt;key&gt;LSApplicationQueriesSchemes&lt;/key&gt;
  &lt;array&gt;
    ...
    &lt;string&gt;freecharge&lt;/string&gt