code: public DbEventImportInfo import_event(Database database, String channel_name)
              throws DevFailed {
          if (!database.isAccess_checked()) checkAccess(database);
  
          //  Check if channel name i a full url
          channel_name = new TangoUrl(channel_name).devname;
          DeviceData argIn = new DeviceData();
          argIn.insert(channel_name);
          DeviceData argOut = command_inout(database, "DbImportEvent", argIn);
          DevVarLongStringArray info = argOut.extractLongStringArray();
          return new DbEventImportInfo(info);
      }
docs: ==========================================================================