ment);

   When above element is declared as follows:

      <my-element state-path="state.myElement"></my-element>

   it will be notified about changes (and render those) to `state.valueA` or
   `state.myElement.valueB` in action dispatchers or other state mutating
   elements.

   @polymer
   @mixinFunction
  */
  UniFlow.StateAware = Polymer.dedupingMixin((base) =>
    class extends base {
      static get properties() {
        return {

          /**
           * Application state, shared among applic