ice.Calendar.</span><code><span class="memberNameLink"><a href="../../../../../../../../com/lark/oapi/service/calendar/v4/CalendarService.Calendar.html#primary-com.lark.oapi.service.calendar.v4.model.PrimaryCalendarReq-com.lark.oapi.core.request.RequestOptions-">primary</a></span>(<a href="../../../../../../../../com/lark/oapi/service/calendar/v4/model/PrimaryCalendarReq.html" title="com.lark.oapi.service.calendar.v4.model中的类">PrimaryCalendarReq</a>&nbsp;req,
       <a href="../../../../../../../../co