public UpdateUserRequest withUserName(String userName) {
        setUserName(userName);
        return this;
    }
<p>
The Amazon QuickSight user name that you want to update.
</p>

@param userName
       The Amazon QuickSight user name that you want to update.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-quicksight/src/main/java/com/amazonaws/services/quicksight/model/UpdateUserRequest.java