public <T extends BaseRequest<T, R>, R extends BaseResponse> R execute(BaseRequest<T, R> request) {
        return api.send(request);
    }
@Test
    public void uploadStickerFile() throws IOException {
        byte[] bytes = Files.readAllBytes(stickerFile.toPath());
        GetFileResponse response = bot.execute(new UploadStickerFile(chatId, bytes, Sticker.Format.Static));
        FileTest.check(response.file(), false);

        response = bot.execute(new UploadStickerFile(chatId, bytes, Sticker.Format.Static));
        FileTest.check(response.file(), false);
    }