Because we're currently using [`babel-plugin-rewire`](https://github.com/speedskater/babel-plugin-rewire), you may encounter the following error when testing your Vuex actions and getters:
`[vuex] actions should be function or object with "handler" function`
To prevent this error from happening, you need to export an empty function:
To prevent this error from happening, you need to export an empty function as `default`:
