code: public JSONObject videoSessioncode(HashMap<String, String> options) {
          AipRequest request = new AipRequest();
          preOperation(request);
          if (options != null) {
              request.addBody(options);
          }
          request.setUri(FaceConsts.VIDEO_SESSIONCODE);
          request.setBodyFormat(EBodyFormat.RAW_JSON);
          postOperation(request);
          return requestServer(request);
      }
docs: 语音校验码接口接口
  
  @param options - 可选参数对象，key: value都为string类型
  options - options列表:
  appid 百度云创建应用时的唯一标识ID
  @return JSONObject