Step 2

redux-mixin.html

<link rel="import" href="../../bower_components/polymer/polymer-element.html">
<link rel="import" href="../../bower_components/polymer-redux/polymer-redux.html">

<link rel="import" href="redux-reducers.html">
<link rel="import" href="redux-selectors.html">
<link rel="import" href="redux-actions.html">

<script>
  (() => {
  	App = window.App || {};

  	const store = Redux.createStore(App.rootReducer);
  	const ReduxMixin = PolymerRedux(store);

  	const ActionsMixin = (superClass) => {
  		return class extends ReduxMixin(superClass) {
			static get actions() {
				return App.actions;
			}
  		};
  	};

  	App.store = store;
  	App.ReduxMixin = Polymer.dedupingMixin(ActionsMixin);
  })();
</script>