Extensions.cs

public static class TwitterAccountRawEndpointExtensions
{
    public static SocialHttpResponse VerifyCredentialsWithParams(this TwitterAccountRawEndpoint endpoint, bool includeEntities = false, bool skipStatus = false, bool includeEmail = false)
    {
        return endpoint.Client.DoHttpGetRequest("https://api.twitter.com/1.1/account/verify_credentials.json", new NameValueCollection
        {
            { "include_entities", includeEntities ? "true" :"false" },
            { "skip_status", skipStatus ? "true" :"false" },
            { "include_email", includeEmail ? "true" :"false" }
        });
    }
}

public static class TwitterAccountEndpointExtensions
{
    public static TwitterUserResponse VerifyCredentialsWithParams(this TwitterAccountEndpoint endpoint, bool includeEntities = false, bool skipStatus = false, bool includeEmail = false)
    {
        return TwitterUserResponse.ParseResponse(endpoint.Raw.VerifyCredentialsWithParams(includeEntities, skipStatus, includeEmail));
    }
}