added node modules back to the example bot, so it exports with the required modules

node_modules/tar-stream/constants.js

@@ -0,0 +1,14 @@
+const constants = { // just for envs without fs
+  S_IFMT: 61440,
+  S_IFDIR: 16384,
+  S_IFCHR: 8192,
+  S_IFBLK: 24576,
+  S_IFIFO: 4096,
+  S_IFLNK: 40960
+}
+
+try {
+  module.exports = require('fs').constants || constants
+} catch {
+  module.exports = constants
+}