使用 zip 配对输入

您的团队有一条将文件上传到特定云存储位置的流水线。同事使用 zip() 搭配 expand_kwargs()，将每个文件与其云存储目标一一配对：

@task
def get_files():
    return ["users.csv", "orders.csv", "products.csv"]

@task
def get_destinations():
    return ["s3://bronze/users/", "s3://bronze/orders/", "s3://bronze/products/"]

@task
def upload(file_to_upload):
    # Simulate uploading a file to cloud storage
    print(f"Uploading {file_to_upload[0]} to {file_to_upload[1]}")

files = get_files()
destinations = get_destinations()
upload.expand(file_to_upload=files.zip(destinations))

Airflow 将创建多少个 upload 实例？