Modifying Folder Level Custom Permissions

Uma Dyaberi

Hi, I am modifying the custom permissions through API for a folder and Sub items. While testing an API through Postman (PUT api/v2/nodes/{id}/permissions/custom/{right_id} - Update a custom permission), should I pass the "permissions" list as comma separated text values (e.g. - 'see', 'modify','delete' ) or integer values (e.g. 0,1,2,3)?
If any one has tested an OpenText APIs in Postman for different parameter types, please let me know your inputs. (passing string ,integer types do not have an issue)

Thanks,
Uma.