private com.google.protobuf.SingleFieldBuilder<im.turms.server.common.access.client.dto.notification.TurmsNotification.Data, im.turms.server.common.access.client.dto.notification.TurmsNotification.Data.Builder, im.turms.server.common.access.client.dto.notification.TurmsNotification.DataOrBuilder> getDataFieldBuilder() {
            if (dataBuilder_ == null) {
                dataBuilder_ = new com.google.protobuf.SingleFieldBuilder<>(
                        getData(),
                        getParentForChildren(),
                        isClean());
                data_ = null;
            }
            return dataBuilder_;
        }
<code>.im.turms.proto.TurmsNotification.Data data = 7;</code>
turms-server-common/src/main/java/im/turms/server/common/access/client/dto/notification/TurmsNotification.java