public static async Task MainAsync(string[] args, CancellationToken ct)
{
    using (var client =
        SoapClient.Prepare()
            .WithHandler(new DelegatingSoapHandler
            {
                OnSoapEnvelopeRequestAsyncAction = async (c, d, cancellationToken) =>
                {
                    d.Envelope.WithHeaders(
                        KnownHeader.Oasis.Security.UsernameTokenAndPasswordText(
                            "some-user", "some-password"));
                },
                OnHttpRequestAsyncAction = async (soapClient, d, cancellationToken) =>
                {
                    Logger.LogTrace(
                        "SOAP Outbound Request -> {0} {1}({2})\n{3}",
                        d.Request.Method, d.Url, d.Action, await d.Request.Content.ReadAsStringAsync());
                },
                OnHttpResponseAsyncAction = async (soapClient, d, cancellationToken) =>
                {
                    Logger.LogTrace(
                        "SOAP Outbound Response -> {0}({1}) {2} {3}\n{4}",
                        d.Url, d.Action, (int) d.Response.StatusCode, d.Response.StatusCode,
                        await d.Response.Content.ReadAsStringAsync());
                },
                OnSoapEnvelopeResponseAsyncAction = async (soapClient, d, cancellationToken) =>
                {
                    var header =
                        d.Envelope.Header<UsernameTokenAndPasswordTextSoapHeader>(
                            "{" + Constant.Namespace.OrgOpenOasisDocsWss200401Oasis200401WssWssecuritySecext10 +
                            "}Security");
                }
            }))
    {
        var requestEnvelope =
            SoapEnvelope.Prepare().Body(new IsAliveRequest());

        SoapEnvelope responseEnvelope;
        try
        {
            responseEnvelope =
                await client.SendAsync(
                    "https://services.company.com/Service.svc",
                    "http://services.company.com/IService/IsAlive",
                    requestEnvelope, ct);
        }
        catch (SoapEnvelopeSerializationException e)
        {
            Logger.LogError(e, 
                $"Failed to serialize the SOAP Envelope [Envelope={e.Envelope}]");
            throw;
        }
        catch (SoapEnvelopeDeserializationException e)
        {
            Logger.LogError(e,
                $"Failed to deserialize the response into a SOAP Envelope [XmlValue={e.XmlValue}]");
            throw;
        }

        try
        {
            var response = responseEnvelope.Body<IsAliveResponse>();
        }
        catch (FaultException e)
        {
            Logger.LogError(e,
                $"The server returned a fault [Code={e.Code}, String={e.String}, Actor={e.Actor}]");
            throw;
        }
    }
}

[XmlRoot("IsAliveRequest", Namespace = "http://services.company.com")]
public class IsAliveRequest
{

}

[XmlRoot("IsAliveResponse", Namespace = "http://services.company.com")]
public class IsAliveResponse
{
	[XmlElement("IsAliveResult")]
	public bool IsAlive { get; set; }
}