private void cacheMember(Long groupId, GroupMember member) {
        if (!isMemberCacheEnabled) {
            return;
        }
        Map<GroupMember.Key, GroupMember> keyAndMember =
                groupIdToMembersCache.getIfPresent(groupId);
        if (keyAndMember != null) {
            keyAndMember.put(member.getKey(), member);
        }
    }
@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