docs: public static PapayDeletecontractResult papayDeletecontract(PapayDeletecontract papayDeletecontract,String key){
  		Map<String,String> map = MapUtil.objectToMap(papayDeletecontract);
  		String sign = SignatureUtil.generateSign(map,papayDeletecontract.getSign_type(),key);
  		papayDeletecontract.setSign(sign);
  		String closeorderXML = XMLConverUtil.convertToXML(papayDeletecontract);
  		HttpUriRequest httpUriRequest = RequestBuilder.post()
  				.setHeader(xmlHeader)
  				.setUri(baseURI()+ "/papay/deletecontract")
  				.setEntity(new StringEntity(closeorderXML,Charset.forName("utf-8")))
  				.build();
  		return LocalHttpClient.executeXmlResult(httpUriRequest,PapayDeletecontractResult.class,papayDeletecontract.getSign_type(),key);
  	}