code: function(path_segments) {
  
  		if (Lava.schema.VALIDATE_OBJECT_PATHS) {
  
  			if (!(path_segments[0] in Lava.parsers.Common.LITERALS) && this.valid_globals.indexOf(path_segments[0]) == -1) {
  				Lava.t("ObjectParser: invalid external path. Text: " + path_segments.join('.'));
  			}
  
  		}
  
  	}
docs: Keep in mind: configs must be serializable
  @param {Array} path_segments