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<h4>challenges</h4>
<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a>&lt;<a href="../../../../com/lark/oapi/okhttp/Challenge.html" title="com.lark.oapi.okhttp中的类">Challenge</a>&gt;&nbsp;challenges()</pre>
<div class="block">Returns the RFC 7235 authorization challenges appropriate for this response's code. If the
 response code is 401 unauthorized, this returns the "WWW-Authenticate" c