public Flux<Long> queryUsersJoinedGroupIds(
            @Nullable Set<Long> groupIds,
            @NotEmpty Set<Long> userIds,
            @Nullable Integer page,
            @Nullable Integer size) {
        try {
            Validator.notEmpty(userIds, "userIds");
        } catch (ResponseException e) {
            return Flux.error(e);
        }
        return groupMemberRepository.findUsersJoinedGroupIds(groupIds, userIds, page, size);
    }
@return Possible codes: {@link ResponseStatusCode#OK}
        {@link ResponseStatusCode#SEND_MESSAGE_TO_MUTED_GROUP}
        {@link ResponseStatusCode#SEND_MESSAGE_TO_INACTIVE_GROUP}
        {@link ResponseStatusCode#MUTED_GROUP_MEMBER_SEND_MESSAGE}
turms-service/src/main/java/im/turms/service/domain/group/service/GroupMemberService.java