The code property is not present in the responses from endpoints operating on multiple document.
Tested with ArangoDB 3.6, 3.5 and 3.4.

Example:

[ { "error": true, "errorNum": 1202, "errorMessage": "document not found" }, { "error": true, "errorNum": 1205, "errorMessage": "illegal document handle" } ] 

We should remove the property from the response models because otherwise it can mislead users.

Impacted classes:

• PostDocumentsDocumentResponse
• DeleteDocumentsDocumentResponse