docs: protected void loadExternalConfigs(final Set<ConfigurationItem> source) {
      ConfigurationItem include = getConfigurationItemByKey(source, "tsd.core.config");
      if(include!=null && include.getValue()!=null) {
        loadConfigSource(this, include.getValue());
      }
      include = getConfigurationItemByKey(source, "tsd.core.config.include");
      if(include!=null && include.getValue()!=null) {
        loadConfigSource(this, include.getValue());
      }   
    }