setGroupMemberRole method Null safety

Future<V2TimCallback> setGroupMemberRole(
  1. {required String groupID,
  2. required String userID,
  3. required GroupMemberRoleTypeEnum role}
)

Set the role for a group member

Note:

Public group and Meeting group: Only the group owner can switch roles between ordinary members and administrators for group members. 
Other groups do not support setting group member roles. 
To transfer a group, please call the transferGroupOwner interface. 
公开群（Public）和会议群（Meeting）：只有Group owner才能对群成员进行Common member和Admin之间的角色切换。
其他群不支持设置群成员角色。
转让群组请调用 transferGroupOwner 接口。

Parameter

role	Switched roles support: V2TIMGroupMemberFullInfo.V2TIM_GROUP_MEMBER_ROLE_MEMBER: common group member V2TIMGroupMemberFullInfo.V2TIM_GROUP_MEMBER_ROLE_ADMIN: administrator

Implementation

Future<V2TimCallback> setGroupMemberRole({
  required String groupID,
  required String userID,
  required GroupMemberRoleTypeEnum role,
}) async {
  return ImFlutterPlatform.instance.setGroupMemberRole(
      groupID: groupID,
      userID: userID,
      role: EnumUtils.convertGroupMemberRoleTypeEnum(role));
}