message: import missing
diff: @@ -4,6 +4,7 @@ import { OCPPChangeAvailabilityCommandParam, OCPPChangeAvailabilityCommandResult
  import ChargingStationClient from '../ChargingStationClient';
  import Configuration from '../../../utils/Configuration';
  import Logging from '../../../utils/Logging';
  +import { OCPPVersion } from '../../../types/ocpp/OCPPServer';
  import { ServerAction } from '../../../types/Server';
  import global from '../../../types/GlobalType';
  import { soap } from 'strong-soap';
  