public CdmaObj withRegistrationZone(Integer registrationZone) {
        setRegistrationZone(registrationZone);
        return this;
    }
<p>
CDMA registration zone (RZ).
</p>

@param registrationZone
       CDMA registration zone (RZ).
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-iotwireless/src/main/java/com/amazonaws/services/iotwireless/model/CdmaObj.java