Retrieve a pay statement

Pay statements are generated as PDF files on-demand and stored to a CDN for fast retrieval. API consumers must access the returned URL to download the pay statement. The download URL is signed with an expiring access token and remains valid until the time indicated by the “expiresAt” value is reached. Once that time is reached, accessing the URL will return an error and the pay statement should be requested again if needed. The URL is valid for at least 10 minutes.