As we have now interacted with multiple sections of Python and device interaction, let's create a use case to incorporate what we have learned so far. The use case is as follows:
Log into the router and fetch some information:
- task1(): Show the version, show the IP in brief, show the clock, and show the configured usernames on the router.
- task2(): Create another username on the test router with the password test and check whether we can log in successfully with the newly created username.
- task3(): Log in with the newly created username test, and delete all the other usernames from the running-config. Once this is done, return all the current usernames configured on the router to confirm whether only the test
