Update _3gpp-common-subscription-control.yang

        If notificationFilter is present, only notifications that pass the 

        filter criteria are forwarded to the notification recipient; all other 

        notifications are discarded.

        The filter can be applied to any field of a notification.";

        The filter can be applied to any field of a notification.

        The sformat of the string shall follow JSON expressions (Jex)";

      reference "3GPP TS 32.161";

    }

  }