public SingleSignOn withUserAssignment(UserAssignment userAssignment) {
        this.userAssignment = userAssignment.toString();
        return this;
    }
<p>
The single sign-on user assignment in Amazon DataZone.
</p>

@param userAssignment
       The single sign-on user assignment in Amazon DataZone.
@return Returns a reference to this object so that method calls can be chained together.
@see UserAssignment
aws-java-sdk-datazoneexternal/src/main/java/com/amazonaws/services/datazone/model/SingleSignOn.java