text: const devtoolHook = typeof window !== 'undefined' &&  window.__VUE_DEVTOOLS_GLOBAL_HOOK__
  
  export default function devtoolPlugin (store) {
    if (!devtoolHook) return
  
    store._devtoolHook = devtoolHook
  
    devtoolHook.emit('vuex:init', store)
  
    devtoolHook.on('vuex:travel-to-state', targetState => {
      store.replaceState(targetState)
    })
    store.subscribe((mutation, state) => {
      devtoolHook.emit('vuex:mutation', mutation, state)
    })
  }
  