[Vuejs]-How do I use a vuejs plugin with Laravel Spark's build system?

I normally import this into a parent component .vue file e.g

<script>
import Datepicker from 'vuejs-datepicker'

export default {
   components: {
      Datepicker
   }
}
</script>

<template>
   <datepicker></datepicker>
</template>