* now using requests lib as it handles errors nicely
* remove unused import (urllib)
* FIX : replaced full_url with endpoint (not using urlib)
* LINT : Found in waybackpy\wrapper.py:88 Unnecessary else after return
* Update cli.py
* improved tests
* chnages for proper testing
* Type check using isinstance
* Replace elifs with if when used after return
* twitter.com --> www.ibm.com
* fix typo
* test archive urll parser and dunders
* Update test_wrapper.py