where the client proxy be saved
===

I add web reference to WCF service 

I want to modify the proxy file be automatically generated by the web service reference tool

I want to add before each method atttribute like 

    [OperationContract]
    [WebInvoke(Method = "GET",
    ResponseFormat = WebMessageFormat.Json,

    BodyStyle = WebMessageBodyStyle.Wrapped,

    UriTemplate = "LogIn/{username}/{password}")]

any idea how to do that 

Best regards