code: public void export_device(final DeviceProxy deviceProxy,
                                final DbDevExportInfo devinfo) throws DevFailed {
          checkIfTango(deviceProxy, "export_device");
          checkIfUseDb(deviceProxy, "export_device()");
  
          if (deviceProxy.getDb_dev() == null) {
              deviceProxy.setDb_dev(new DbDevice(deviceProxy.devname, deviceProxy.url.host,
                  deviceProxy.url.strPort));
          }
          deviceProxy.getDb_dev().export_device(devinfo);
      }
docs: ==========================================================================