Index: node_modules/immer/dist/cjs/index.js
===================================================================
--- node_modules/immer/dist/cjs/index.js	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
+++ node_modules/immer/dist/cjs/index.js	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
@@ -0,0 +1,8 @@
+
+'use strict'
+
+if (process.env.NODE_ENV === 'production') {
+  module.exports = require('./immer.cjs.production.js')
+} else {
+  module.exports = require('./immer.cjs.development.js')
+}