Update API endpoint "update-assistant": We use this endpoint to insert variables into prompt from Make, but we also have knowledgebase files on some of assistant, if we don't provide field knowledgebase in request body update-assistant request just removes all the files from assistant, so to avoid this we need to manually provide list of fileIds in request body, but this list can be very long, it would be better for this request to update only fields that are provided in request body, so if I don't provide knowledgebase field in query then it remains unchanged in the assistant after request.