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**Describe the problem** Grammatical error in codelab summary: `Use the NotificationManager class to create, send, update, and cancel a notification using.` **In which lesson and step of the codelab can...

We wish to fork and use this repo for the hackathon, But according to [choosealicense.com](https://choosealicense.com/no-permission/), > If you find software that doesn’t have a license, that generally means you have...