getResponseAttachmentBody
Returns the body of a part in a multipart response.
General format
void getResponseAttachmentBody( id, body )
Syntax rules
1. id and body are alphanumeric data items.
General rules
1. id can be extracted from the list returned by getResponseAttachmentIDs.
2. body receives the body of the part.
Note - if iscobol.http.mtom_enabled (boolean) * is set to true in the configuration, the attachments of a multipart response can be intercepted directly with getResponseXML being stored in fields with either the BASE64BINARY or HEXBINARY clause.