directives.py 文件源码

def generate_payload(event):
    """
    returns a file-like MultipartEncoder instance that can be used to write-out the multi-part request headers and body


    :param event: dict payload to send as "metadata" part in multi-part request
    :return: MultipartEncoder
    """
    return MultipartEncoder({"metadata": (None, io.BytesIO(json.dumps(event).encode()), 'application/json')})