public CreateRegistrationResult withCurrentVersionNumber(Long currentVersionNumber) {
        setCurrentVersionNumber(currentVersionNumber);
        return this;
    }
<p>
The current version number of the registration.
</p>

@param currentVersionNumber
       The current version number of the registration.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-pinpointsmsvoicev2/src/main/java/com/amazonaws/services/pinpointsmsvoicev2/model/CreateRegistrationResult.java