public UserDetails withSessionId(String sessionId) {
        setSessionId(sessionId);
        return this;
    }
<p>
The system-assigned unique identifier for a session that corresponds to the workflow.
</p>

@param sessionId
       The system-assigned unique identifier for a session that corresponds to the workflow.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-transfer/src/main/java/com/amazonaws/services/transfer/model/UserDetails.java