Download a document for a customer
Includes an API key in the HTTP headers to authenticate the client.
Includes an API secret in the HTTP headers to authenticate the client.
A valid Customer ID
"cus_2ofTA13AD0xBtbEvBl20aEb1hEu"
A valid Document ID Unique identifier for the document
"doc_2ofTA13AD0xBtbEvBl20aEb1hEu"