code: function(setter) { // the text value of a node is set to the concatenation of every argument
  		return create_list_binding(function(args) {
  			return map(args, cjs.get).join("");
  		}, function(element, value) {
  			setter(element, value);
  		});
  	}
docs: Creates a type of binding that accepts any number of arguments and then sets an attribute's value to depend on every element that was passed in