from metaflow import step, FlowSpec, batch

class BatchTags(FlowSpec):
    @batch(aws_batch_tags={"inv@lid": "t@g"})
    @step
    def start(self):
        print("Starting 👋")
        self.next(self.end)

    @step
    def end(self):
        print("Done! 🏁")


if __name__ == "__main__":
    BatchTags()