bel">ExtService.</span><code><span class="memberNameLink"><a href="../../../../../../../com/lark/oapi/service/ext/ExtService.html#getAuthenAccessToken-com.lark.oapi.service.ext.model.AuthenAccessTokenReq-com.lark.oapi.core.request.RequestOptions-">getAuthenAccessToken</a></span>(<a href="../../../../../../../com/lark/oapi/service/ext/model/AuthenAccessTokenReq.html" title="com.lark.oapi.service.ext.model中的类">AuthenAccessTokenReq</a>&nbsp;req,
                    <a href="../../../../../../../com/lark/