code: public CalledRemoteApiCounter increment(String facadeName) {
          if (facadeName == null) {
              throw new IllegalArgumentException("The argument 'facadeName' should not be null.");
          }
          if (facadeCountMap == null) {
              facadeCountMap = new LinkedHashMap<String, Integer>();
          }
          final Integer count = facadeCountMap.get(facadeName);
          if (count != null) {
              facadeCountMap.put(facadeName, count + 1);
          } else {
              facadeCountMap.put(facadeName, 1);
          }
          return this;
      }
docs: =========