import { CloudWatchAlarmDefinitionProps } from './CloudWatchAlarmDefinitionProps';
/**
  <code>ScalingTrigger</code> is a subproperty of the <code>ScalingRule</code> property type. <code>ScalingTrigger</code> determines the conditions that trigger an automatic scaling activity.
  For full documentation go to <a href="http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-elasticmapreduce-cluster-scalingtrigger.html">the AWS Docs</a>
*/
export interface ScalingTriggerProps {
    /** <code>CloudWatchAlarmDefinition</code>  <a name="cfn-elasticmapreduce-cluster-scalingtrigger-cloudwatchalarmdefinition"></a>
  The definition of a CloudWatch metric alarm. When the defined alarm conditions are met along with other trigger parameters, scaling activity begins.<br />
  
  Required: Yes<br />
  
  Update requires: <a href="https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt">No interruption</a> */
    cloudWatchAlarmDefinition: CloudWatchAlarmDefinitionProps;
}
