public void setAppInstanceArn(String appInstanceArn) {
        this.appInstanceArn = appInstanceArn;
    }
<p>
The <code>AppInstance</code> ARN.
</p>

@param appInstanceArn
       The <code>AppInstance</code> ARN.
aws-java-sdk-chimesdkidentity/src/main/java/com/amazonaws/services/chimesdkidentity/model/AppInstanceSummary.java