public Observation withHealthEventArn(String healthEventArn) {
        setHealthEventArn(healthEventArn);
        return this;
    }
<p>
The Amazon Resource Name (ARN) of the AWS Health Event-based observation.
</p>

@param healthEventArn
       The Amazon Resource Name (ARN) of the AWS Health Event-based observation.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-applicationinsights/src/main/java/com/amazonaws/services/applicationinsights/model/Observation.java