Is CSharpCodeMatcher actually usable?

[smfields]

The docs mention a CSharpCodeMatcher and show the following usage:

var server = WireMockServer.Start();
server
    .Given(Request.Create().WithPath("/cs")
        .WithParam("from", new CSharpCodeMatcher("return it == \"x\";")))
    .RespondWith(Response.Create()
        .WithBody("cs match")
    );

But CSharpCodeMatcher is an internal class, so it can't be new'd up directly like shown above. So how are you actually supposed to use it from code?

[StefH]

This is indeed incorrectly designed, I'll fix it.

#1337