code: public PactDslRequestWithoutPath body(Document body) throws TransformerException {
          requestBody = OptionalBody.body(xmlToString(body).getBytes());
          if (!requestHeaders.containsKey(CONTENT_TYPE)) {
              requestHeaders.put(CONTENT_TYPE, Collections.singletonList(ContentType.APPLICATION_XML.toString()));
          }
          return this;
      }
docs: The body of the request
  
  @param body XML Document