public void setCustomizedScalingMetricSpecification(CustomizedScalingMetricSpecification customizedScalingMetricSpecification) {
        this.customizedScalingMetricSpecification = customizedScalingMetricSpecification;
    }
<p>
A customized metric. You can specify either a predefined metric or a customized metric.
</p>

@param customizedScalingMetricSpecification
       A customized metric. You can specify either a predefined metric or a customized metric.
aws-java-sdk-autoscalingplans/src/main/java/com/amazonaws/services/autoscalingplans/model/TargetTrackingConfiguration.java