private com.google.protobuf.SingleFieldBuilder<im.turms.server.common.access.client.dto.model.user.UserRelationshipGroupsWithVersion, im.turms.server.common.access.client.dto.model.user.UserRelationshipGroupsWithVersion.Builder, im.turms.server.common.access.client.dto.model.user.UserRelationshipGroupsWithVersionOrBuilder> getUserRelationshipGroupsWithVersionFieldBuilder() {
                if (userRelationshipGroupsWithVersionBuilder_ == null) {
                    if (!(kindCase_ == 12)) {
                        kind_ = im.turms.server.common.access.client.dto.model.user.UserRelationshipGroupsWithVersion
                                .getDefaultInstance();
                    }
                    userRelationshipGroupsWithVersionBuilder_ =
                            new com.google.protobuf.SingleFieldBuilder<>(
                                    (im.turms.server.common.access.client.dto.model.user.UserRelationshipGroupsWithVersion) kind_,
                                    getParentForChildren(),
                                    isClean());
                    kind_ = null;
                }
                kindCase_ = 12;
                onChanged();
                return userRelationshipGroupsWithVersionBuilder_;
            }
<code>.im.turms.proto.UserRelationshipGroupsWithVersion user_relationship_groups_with_version = 12;</code>
turms-server-common/src/main/java/im/turms/server/common/access/client/dto/notification/TurmsNotification.java