Changes to Retrieve an attachment

api tag Attachments added

api tag Attachment removed

added the media type application/xml for the response with the status 200

added the media type application/xml for the response with the status 400

added the media type application/xml for the response with the status 401

added the media type application/xml for the response with the status 403

added the media type application/xml for the response with the status 404

added the media type application/xml for the response with the status 429

added the media type application/xml for the response with the status 503