text: 'use strict'
  
  Object.defineProperty(exports, '__esModule', { value: true })
  
  function memoize(fn) {
    var cache = Object.create(null)
    return function (arg) {
      if (cache[arg] === undefined) cache[arg] = fn(arg)
      return cache[arg]
    }
  }
  
  exports.default = memoize
  