public CreateUserRequest withLastName(String lastName) {
        setLastName(lastName);
        return this;
    }
<p>
The last name, or surname, of the user.
</p>

@param lastName
       The last name, or surname, of the user.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-appstream/src/main/java/com/amazonaws/services/appstream/model/CreateUserRequest.java