text: export default (state = 0, action) => {
    switch (action.type) {
      case 'INCREMENT':
        return state + 1
      case 'DECREMENT':
        return state - 1
      default:
        return state
    }
  }
  
  const increase = () => ({ type: 'INCREMENT' })
  const decrease = () => ({ type: 'DECREMENT' })
  
  export { increase, decrease }
  
  