Update a collection's roles

Updates the roles of users, groups, or teams in a collection. On success, this returns an HTTP `204 No Content` response. **Note:** - Only users assigned the EDITOR [role](https://learning.postman.com/docs/collaborating-in-postman/roles-and-permissions/#collection-roles) in the collection can use this endpoint. - This endpoint does not support the external [Partner or Guest roles](https://learning.postman.com/docs/collaborating-in-postman/roles-and-permissions/#team-roles).