getServiceCapabilities method Null safety
Returns the capabilities of the device service. The result is returned in a typed answer.
Implementation
Future<DeviceServiceCapabilities> getServiceCapabilities() async {
loggy.debug('getServiceCapabilities');
final envelope = await Soap.retrieveEnvelope(
uri, onvif.secureRequest(SoapRequest.serviceCapabilities()));
if (envelope.body.serviceCapabilitiesResponse == null) throw Exception();
return envelope.body.serviceCapabilitiesResponse!.capabilities;
}