040000 tree 37e15f3c9ba5408688a70abb92ac3f837ffa6621	env
100644 blob 48b432a6fd64d82966e7c220160bbc8cda26da9c	index.js
040000 tree c64627628f9783a4015d0a583018cdf9f29465f4	polyfill
100644 blob 595e2fdd257a32de9e5a81dc1772b8bcac32f44b	utils.js