public <T> void getLarge(String url, Header header, Query query, Object body, Type responseType,
            Callback<T> callback) {
        execute(url, HttpMethod.GET_LARGE, new RequestHttpEntity(header, query, body), responseType, callback);
    }
@Test
    void testGetLarge() throws Exception {
        restTemplate.getLarge(TEST_URL, Header.EMPTY, Query.EMPTY, new Object(), String.class, mockCallback);
        verify(requestClient).execute(any(), eq("GET-LARGE"), any(), any(), eq(mockCallback));
    }