docs: function () {
  				var filter = can.route.attr('filter');
  				return this.todos.filter(function (todo) {
  					if (filter === 'completed') {
  						return todo.attr('complete');
  					}
  
  					if (filter === 'active') {
  						return !todo.attr('complete');
  					}
  
  					return true;
  				});
  			}