Add unit tests for role middleware

node_modules/@babel/helper-compilation-targets/README.md

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+# @babel/helper-compilation-targets
+
+> Helper functions on Babel compilation targets
+
+See our website [@babel/helper-compilation-targets](https://babeljs.io/docs/babel-helper-compilation-targets) for more information.
+
+## Install
+
+Using npm:
+
+```sh
+npm install --save @babel/helper-compilation-targets
+```
+
+or using yarn:
+
+```sh
+yarn add @babel/helper-compilation-targets
+```