// Add multiple headers
        request.header("Accept", "application/json").header("Content-Type", "application/json").header("Authorization", "Bearer token123")
                .header("X-Custom-Header", "custom-value");

        assertNotNull(request);
    }

    @Test
    public void testGzipSetsCompressionToGzip() {

        List<AnalyzeToken> tokens2 = analyzer2.analyze(text, field, lang);

        assertNotNull(tokens1);
        assertNotNull(tokens2);
        assertEquals(tokens1.size(), tokens2.size());

        for (int i = 0; i < tokens1.size(); i++) {
            assertEquals(tokens1.get(i).getTerm(), tokens2.get(i).getTerm());
        }
    }

    /**