code: private Api getApiInternal(String apiOrgId, String apiId, String apiVersion) {
          String key = getApiIndex(apiOrgId, apiId, apiVersion);
          Api api;
          synchronized (mutex) {
              api = (Api) getMap().get(key);
          }
          return api;
      }
docs: Gets an API by its unique identifying info (orgid, id, version).
  @param apiOrgId
  @param apiId
  @param apiVersion
  @return an Api or null if not found