public System.Threading.Tasks.Task <AdventureWorksSalesClient.AuthenticationServiceReference.HandshakeToken> BeginLoginAsync(AdventureWorksSalesClient.AuthenticationServiceReference.LoginCredentials credentials)
 {
     return(base.Channel.BeginLoginAsync(credentials));
 }
 public AdventureWorksSalesClient.AuthenticationServiceReference.HandshakeToken BeginLogin(AdventureWorksSalesClient.AuthenticationServiceReference.LoginCredentials credentials)
 {
     return(base.Channel.BeginLogin(credentials));
 }