Payment SourceThe payment source definition.tokenobject<token>OptionalThe tokenized payment source to fund a payment.token properties2 propertiesidstringRequiredThe PayPal-generated ID for the token.Length1 <= length <= 255typeenumRequiredThe tokenization method that generated the ID.Match^[0-9A-Z_-]+$Length1 <= length <= 255Value in"BILLING_AGREEMENT"