public async Task ListLocationsItems_Success()
        {
            var payload = "{\r\n  \"Method\": \"locations.listitems\",\r\n  \"Params\": [\r\n    {\r\n      \"Locations\": [\r\n        {\r\n          \"Uuid\": \"b4e948b8-6378-498f-961c-b7c285c9f5b8\"\r\n        },\r\n        {\r\n          \"Uuid\": \"7f62f934-83d3-4c66-b4bd-df7065cb1c6a\"\r\n        }\r\n      ]\r\n    }";

            _nativeMqttClient.Setup(d => d.PublishMessage(It.IsAny <Request>(), It.IsAny <CancellationToken>()))
            .ReturnsAsync(new PublishResult(PublishResultCode.Success), TimeSpan.FromSeconds(1));

            var response = await _client.GetLocationItems(new List <string> {
                "b4e948b8-6378-498f-961c-b7c285c9f5b8", "7f62f934-83d3-4c66-b4bd-df7065cb1c6a"
            });

            response.IsSuccess.Should().BeTrue();
            _nativeMqttClient.Verify(d => d.PublishMessage(It.Is <Request>(d => d.Payload == payload), It.IsAny <CancellationToken>()), Times.Once);
        }