@Test
public void testBatchWithGetAndPost() throws BatchException, IOException {
List<BatchPart> batch = new ArrayList<BatchPart>();
Map<String, String> headers = new HashMap<String, String>();
headers.put("Accept", "application/json");
BatchPart request = BatchQueryPart.method(GET).uri("Employees").headers(headers).contentId("000").build();
batch.add(request);
Map<String, String> changeSetHeaders = new HashMap<String, String>();
changeSetHeaders.put("content-type", "application/json");
String body = "/9j/4AAQSkZJRgABAQEBLAEsAAD/4RM0RXhpZgAATU0AKgAAAAgABwESAAMAAAABAAEA";