public class CalculatorService : ICalculatorService
  {
    public double AddDouble(double a, double b)
    {
      return a + b;
    }
  }

public double AddDouble(double a, double b) {
            return base.Channel.AddDouble(a, b);

/// <remarks/>
        [System.Web.Services.Protocols.SoapDocumentMethodAttribute("http://tempuri.org/ICalculatorService/AddDouble", RequestNamespace="http://tempuri.org/", ResponseNamespace="http://tempuri.org/", Use=System.Web.Services.Description.SoapBindingUse.Literal, ParameterStyle=System.Web.Services.Protocols.SoapParameterStyle.Wrapped)]
        public void AddDouble(double a, [System.Xml.Serialization.XmlIgnoreAttribute()] bool aSpecified, double b, [System.Xml.Serialization.XmlIgnoreAttribute()] bool bSpecified, out double AddDoubleResult, [System.Xml.Serialization.XmlIgnoreAttribute()] out bool AddDoubleResultSpecified) {
            object[] results = this.Invoke("AddDouble", new object[] {
                        a,
                        aSpecified,
                        b,
                        bSpecified});
            AddDoubleResult = ((double)(results[0]));
            AddDoubleResultSpecified = ((bool)(results[1]));
        }
        
        /// <remarks/>
        public System.IAsyncResult BeginAddDouble(double a, bool aSpecified, double b, bool bSpecified, System.AsyncCallback callback, object asyncState) {
            return this.BeginInvoke("AddDouble", new object[] {
                        a,
                        aSpecified,
                        b,
                        bSpecified}, callback, asyncState);
        }
        
        /// <remarks/>
        public void EndAddDouble(System.IAsyncResult asyncResult, out double AddDoubleResult, out bool AddDoubleResultSpecified) {
            object[] results = this.EndInvoke(asyncResult);
            AddDoubleResult = ((double)(results[0]));
            AddDoubleResultSpecified = ((bool)(results[1]));
        }

double c = AddDouble(a,b);