code: public void loadAttributeConfigFromDb(final String attributeName) throws DevFailed {
          final AttributeImpl toConfigure = dynamicAttributes.get(attributeName.toLowerCase(Locale.ENGLISH));
          if (toConfigure != null) {
              toConfigure.lock();
              try {
                  toConfigure.loadTangoDbConfig();
              }finally {
                  toConfigure.unlock();
              }
          }
      }
docs: Load memorized attribute value and attribute properties from tangodb.
  This loading is done by default at device init, should only be called when dynamic attribute is created outside {@link Init}
  
  @param attributeName
  @throws DevFailed