code: function (args) {
              this.type = "mixin";
              this.fn = function (service) {
                  service.create = service[this.create];
                  service.read = service[this.read];
                  service.update = service[this.update];
                  service.remove = service[this.remove];
              };
          }
docs: Maps simple CRUD operations to actual service methods.
  @param {Object} args should consist of 4 key/value pairs:
  create, read, update and remove
  Each value should be the equivalent operation on the service.