public void setAuthToken(String authToken) {
        this.authToken = authToken;
    }
<p>
Reserved parameter. The password used to access a password protected server. This parameter must be specified
with the <code>auth-token-update</code> parameter. Password constraints:
</p>
<ul>
<li>
<p>
Must be only printable ASCII characters
</p>
</li>
<li>
<p>
Must be at least 16 characters and no more than 128 characters in length
</p>
</li>
<li>
<p>
Cannot contain any of the following characters: '/', '"', or '@', '%'
</p>
</li>
</ul>
<p>
For more information, see AUTH password at <a href="http://redis.io/commands/AUTH">AUTH</a>.
</p>

@param authToken
       Reserved parameter. The password used to access a password protected server. This parameter must be
       specified with the <code>auth-token-update</code> parameter. Password constraints:</p>
       <ul>
       <li>
       <p>
       Must be only printable ASCII characters
       </p>
       </li>
       <li>
       <p>
       Must be at least 16 characters and no more than 128 characters in length
       </p>
       </li>
       <li>
       <p>
       Cannot contain any of the following characters: '/', '"', or '@', '%'
       </p>
       </li>
       </ul>
       <p>
       For more information, see AUTH password at <a href="http://redis.io/commands/AUTH">AUTH</a>.
aws-java-sdk-elasticache/src/main/java/com/amazonaws/services/elasticache/model/ModifyCacheClusterRequest.java