public class HttpClientProvider {

    public TransportationJsonClientUsage myTransportationJsonClientUsage;
    public TransportationJsonResponseHandler myTransportationJsonResponseHandler;

    public static RequestAction sendHttpRequest(HttpRequestContainer requestContainer) {
        return null;
    }

    public static RequestAction get(String url, RequestParams params, TransportationJsonResponseHandler callback) {
        return null;
    }

    public static RequestAction post(String url, RequestParams params, TransportationJsonResponseHandler callback) {
        return null;
    }
}