A better testing setup has been implemented in the custom integration so this lib has been integrated directly and is no longer required. All code is now part of https://github.com/dogmatic69/nordigen-homeassistant
Nordigen is a (always*) free banking API that takes advantage of the EU PSD2 regulations. They connect to banks in over 30 countries using real banking API's (no screen scraping).
This lib uses the generic Nordigen client lib to provide all the logic required for the Home Assistant integration.
This lib was created to make unit testing easy whilst following the layout formats required for HACS to function correctly.