public Builder mergeFrom(
                im.turms.server.common.access.client.dto.model.group.GroupsWithVersion other) {
            if (other == im.turms.server.common.access.client.dto.model.group.GroupsWithVersion
                    .getDefaultInstance()) {
                return this;
            }
            if (groupsBuilder_ == null) {
                if (!other.groups_.isEmpty()) {
                    if (groups_.isEmpty()) {
                        groups_ = other.groups_;
                        bitField0_ &= ~0x00000001;
                    } else {
                        ensureGroupsIsMutable();
                        groups_.addAll(other.groups_);
                    }
                    onChanged();
                }
            } else {
                if (!other.groups_.isEmpty()) {
                    if (groupsBuilder_.isEmpty()) {
                        groupsBuilder_.dispose();
                        groupsBuilder_ = null;
                        groups_ = other.groups_;
                        bitField0_ &= ~0x00000001;
                        groupsBuilder_ = com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders
                                ? getGroupsFieldBuilder()
                                : null;
                    } else {
                        groupsBuilder_.addAllMessages(other.groups_);
                    }
                }
            }
            if (other.hasLastUpdatedDate()) {
                setLastUpdatedDate(other.getLastUpdatedDate());
            }
            this.mergeUnknownFields(other.getUnknownFields());
            onChanged();
            return this;
        }
Protobuf type {@code im.turms.proto.GroupsWithVersion}
turms-server-common/src/main/java/im/turms/server/common/access/client/dto/model/group/GroupsWithVersion.java