- redef var entity_resolver: nullable EntityResolver = null is writable
- redef var dtd_handler: nullable DTDHandler = null is writable
- redef var content_handler: nullable ContentHandler = null is writable
- redef var error_handler: nullable ErrorHandler = null is writable
+ redef var entity_resolver = null is writable
+ redef var dtd_handler = null is writable
+ redef var content_handler = null is writable
+ redef var error_handler = null is writable