Can the params keyword be expressed through the definition of WSDL

The application I'm developing represents service metadata for a WCF service that implements the following service contract:

[ServiceContract]
public interface IService
{
    [OperationContract]
    object Execute( string action, params object[] args );
}

After adding a link to the service, I noticed that the service contract does not have a keyword paramsand its implementation in the generated file Reference.cs.

Does paramsWSDL exist in the definition?

Or paramssomething that is typical for C # and cannot be expressed using the WSDL definition, so the client service generator does not know what paramsto add during generation?