# Filters to apply when visiting the model.
	#
	# See ModelFilters for configuration.
	var filter: ModelFilter is lazy, writable, optional do
		return new ModelFilter(
			min_visibility = protected_visibility,
			accept_fictive = false,
			accept_test = false,
			accept_example = false,
			accept_redef = true,
			accept_extern = true,
			accept_attribute = true,
			accept_empty_doc = true
		)
	end