public void setSessionExpirationTime(java.util.Date sessionExpirationTime) {
        this.sessionExpirationTime = sessionExpirationTime;
    }
<p>
Time after which an end user's session is no longer valid. This is an ISO 8601 timestamp; <i>note that this is
returned as a string</i>.
</p>

@param sessionExpirationTime
       Time after which an end user's session is no longer valid. This is an ISO 8601 timestamp; <i>note that
       this is returned as a string</i>.
aws-java-sdk-ivschat/src/main/java/com/amazonaws/services/ivschat/model/CreateChatTokenResult.java