onRequestToJoinDeclinedFromGroup property
        
        void Function(String groupId, String? groupName, String? decliner, String? reason, String? applicant)?
        onRequestToJoinDeclinedFromGroup
        
      
final
      对端用户拒绝群组申请的回调。
Implementation
final void Function(
  String groupId,
  String? groupName,
  String? decliner,
  String? reason,
  String? applicant,
)? onRequestToJoinDeclinedFromGroup;