{Date} [expiryTime] The time in UTC at which this download URL
will expire.
NOTE: This property will not be serialized. It can only be populated by
the server.
Optional url
url:undefined | string
member
{string} [url] The URL to the PDF file.
NOTE: This property will not be serialized. It can only be populated by
the server.
An interface representing DownloadUrl. A secure URL that can be used to download a PDF invoice until the URL expires.