code: public void logAttributeWarning(PathAddress address, String attribute) {
          logAttributeWarning(address, null, null, attribute);
      }
docs: Log a warning for the resource at the provided address and a single attribute. The detail message is a default
  'Attributes are not understood in the target model version and this resource will need to be ignored on the target host.'
  
  @param address   where warning occurred
  @param attribute attribute we are warning about