public void setAppInstanceAdmin(AppInstanceAdmin appInstanceAdmin) {
        this.appInstanceAdmin = appInstanceAdmin;
    }
<p>
The ARN and name of the <code>AppInstanceUser</code>, the ARN of the <code>AppInstance</code>, and the created
and last-updated timestamps. All timestamps use epoch milliseconds.
</p>

@param appInstanceAdmin
       The ARN and name of the <code>AppInstanceUser</code>, the ARN of the <code>AppInstance</code>, and the
       created and last-updated timestamps. All timestamps use epoch milliseconds.
aws-java-sdk-chime/src/main/java/com/amazonaws/services/chime/model/DescribeAppInstanceAdminResult.java