ion.get = function(userArray) {
return Polymer._collections.get(userArray) || new Polymer.Collection(userArray);
};

Polymer({
is: "dom-repeat",
"extends": "template",
properties: {
items: {
type: Array
},
as: {
type: String,
value: "item"
},
indexAs: {
type: String,
value: "index"
},
sort: {
type: Function,
observer: "_sortChanged"
},
filter: {
type: Function,
observer: "_filterChanged"
},
observe: {
type: String,
observer: "_observeChanged"
},
delay: Number
},
behaviors: [ Polymer.Templatizer ],
observers