text: import has from 'has'
  
  class Symbols {
    constructor() {
      this.map = {}
    }
  
    get(name) {
      if (!has(this.map, name)) {
        this.map[name] = Symbol(name)
      }
      return this.map[name]
    }
  
    get all() {
      return Object.values(this.map)
    }
  }
  
  export default new Symbols()
  