Public Function BeginGetClientToken( _
   ByVal specification As TokenSpecification, _
   ByVal callback As AsyncCallback, _
   ByVal asyncState As Object _
) As IAsyncResult

Dim instance As CommonService
Dim specification As TokenSpecification
Dim callback As AsyncCallback
Dim asyncState As Object
Dim value As IAsyncResult
 
value = instance.BeginGetClientToken(specification, callback, asyncState)

public IAsyncResult BeginGetClientToken( 
   TokenSpecification specification,
   AsyncCallback callback,
   object asyncState
)