code: function(widget_config, raw_directive, config_property_name) {
  
  		if (Lava.schema.DEBUG && !('attributes' in raw_directive)) Lava.t("option: missing attributes");
  		if (Lava.schema.DEBUG && (!raw_directive.content || raw_directive.content.length != 1)) Lava.t("Malformed property: " + raw_directive.attributes.name);
  		Lava.store(widget_config, config_property_name, raw_directive.attributes.name, raw_directive.content[0]);
  
  	}
docs: Helper method for widget directives
  @param {_cWidget} widget_config
  @param {_cRawDirective} raw_directive
  @param {string} config_property_name