class Stripe {

    @Nullable
    public Source createSourceSynchronous(@NonNull SourceParams params)
            throws AuthenticationException,
            InvalidRequestException,
            APIConnectionException,
            CardException,
            APIException {
        return createSourceSynchronous(params, null);
    }

    public  Stripe(@NonNull Context context);
    public  Stripe(@NonNull Context context, String publishableKey);

}