}

    private BytesReference read300BytesExample() throws IOException {
        return Streams.readFully(FetchSourcePhaseBenchmark.class.getResourceAsStream("300b_example.json"));
    }

    private BytesReference buildBigExample(String extraText) throws IOException {
        String bigger = read300BytesExample().utf8ToString();
        bigger = "{\"huge\": \"" + extraText + "\"," + bigger.substring(1);