code: function(target, types, up, action) {
  		types.forEach(function(type) {
  			action(type, this._rateone(
  				up ? target : type, up ? type : target
  			));
  		}, this);
  	}
docs: Rate all types.
  @param {function} t
  @param {Array<function>} types
  @param {boolean} up Rate ancestor?
  @param {function} action