@java.lang.Override
    public int getSerializedSize() {
        int size = memoizedSize;
        if (size != -1) {
            return size;
        }

        size = 0;
        if (((bitField0_ & 0x00000001) != 0)) {
            size += com.google.protobuf.CodedOutputStream.computeInt64Size(1, groupId_);
        }
        if (((bitField0_ & 0x00000002) != 0)) {
            size += com.google.protobuf.CodedOutputStream.computeInt64Size(2, userId_);
        }
        if (((bitField0_ & 0x00000004) != 0)) {
            size += com.google.protobuf.GeneratedMessage.computeStringSize(3, name_);
        }
        if (((bitField0_ & 0x00000008) != 0)) {
            size += com.google.protobuf.CodedOutputStream.computeEnumSize(4, role_);
        }
        if (((bitField0_ & 0x00000010) != 0)) {
            size += com.google.protobuf.CodedOutputStream.computeInt64Size(5, joinDate_);
        }
        if (((bitField0_ & 0x00000020) != 0)) {
            size += com.google.protobuf.CodedOutputStream.computeInt64Size(6, muteEndDate_);
        }
        if (((bitField0_ & 0x00000040) != 0)) {
            size += com.google.protobuf.CodedOutputStream.computeEnumSize(7, userStatus_);
        }
        {
            int dataSize = 0;
            for (int i = 0; i < usingDeviceTypes_.size(); i++) {
                dataSize += com.google.protobuf.CodedOutputStream
                        .computeEnumSizeNoTag(usingDeviceTypes_.getInt(i));
            }
            size += dataSize;
            if (!getUsingDeviceTypesList().isEmpty()) {
                size += 1;
                size += com.google.protobuf.CodedOutputStream.computeUInt32SizeNoTag(dataSize);
            }
            usingDeviceTypesMemoizedSerializedSize = dataSize;
        }
        if (((bitField0_ & 0x00000080) != 0)) {
            size += com.google.protobuf.GeneratedMessage.computeStringSize(9, note_);
        }
        for (im.turms.server.common.access.client.dto.model.common.Value value : customAttributes_) {
            size += com.google.protobuf.CodedOutputStream.computeMessageSize(15, value);
        }
        size += getUnknownFields().getSerializedSize();
        memoizedSize = size;
        return size;
    }
<code>repeated .im.turms.proto.Value custom_attributes = 15;</code>
turms-server-common/src/main/java/im/turms/server/common/access/client/dto/model/group/GroupMember.java