* Opened a new fresh page to clean my mess.
* Solved pylint warnings
* Fixing pylint issue of defining attr outside init.
* Excluded files from being tested by codecov.
* Solved binary sensor error.
* Fixed some stylisation errors.
* Resolved input not updating problem.
* Added port entry to test file.
* Added tests for create_entry.
* Added support for better state management.
* Increased code coverage of config_flow.py & made some tweaks.
* Increased coverage of config_flow.py by adding tests for unknown exceptions.
* A small bugfix.
* Stylised code as per Chris' suggestions.
* Stylised code again.
* Improved quality of test code.
* Added step_id in config flow tests.
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