[ NoAccessorMethod ]
public abstract uint delivery_state { get; set; }
Represents the D-Bus property <link linkend="gdbus-property-org-freedesktop-ModemManager1-Sms.
DeliveryState">"DeliveryState"</link>.
Since the D-Bus property for this Object property is readable but not writable, it is meaningful to read from it on both the client- and service-side. It is only meaningful, however, to write to it on the service-side.