I'm a big fan of decorators, but it seems like much of the React/Redux world is overly class-decorator happy. It's really common to define properties in a decorator which would be much easier to read, IMO, as static or instance properties. I'd rather read something more like this:

    @kea // kicks off the meta-programming to read the statics below
    export default class Counter extends Component {
      static actions = {
        increment: (amount) => ({ amount }),
        decrement: (amount) => ({ amount }),
      };

      static reducers = {
        counter: [0, PropTypes.number, {
          [this.actions.increment]: (state, payload) => state + payload.amount,
          [this.actions.decrement]: (state, payload) => state - payload.amount
        }],
      };

      static selectors = ({ selectors }) => ({
        doubleCounter: [
          () => [selectors.counter],
          (counter) => counter * 2,
          PropTypes.number,
        ],
      });

      render () {
        const { counter, doubleCounter } = this.props
        const { increment, decrement } = this.constructor.actions

        return (
          <div className='kea-counter'>
            Count: {counter}<br />
            Doublecount: {doubleCounter}<br />
            <button onClick={() => increment(1)}>Increment</button>
            <button onClick={() => decrement(1)}>Decrement</button>
          </div>
        )
      }
    }