apply
The mode in which the alert template is applied. Valid values:GROUP_INSTANCE_FIRSTor ALARM_TEMPLATE_FIRST. GROUP_INSTANCE_FIRST: The metrics in the application group take precedence. If a metric specified in the alert template does not exist in the application group, the system does not generate an alert rule for the metric based on the alert template. ALARM_TEMPLATE_FIRST: The metrics specified in the alert template take precedence. If a metric specified in the alert template does not exist in the application group, the system still generates an alert rule for the metric based on the alert template.