Gateway-generated transaction identifier returned in the response of the original transaction.

Identifies the attachment types to be returned; see the attachmentTypeType enumerations for specific values supported.

Base64 encoded attachment data

Identifies the format of the attachment data; see the attachmentFormatType enumerations for specific values supported.

For image formats, this is the height calculated internally based on the provided data.

For image formats, this is the width calculated internally based on the provided data.

A merchant-assigned name for the associated attachment

Gateway-generated attachment identifier