Manually extracted refined types as test cases

[duklin]

Is your feature request related to a problem? Please describe

The manually extracted types here have the same structure of refined types as we expect to automatically extract using the package_parser. This is the reason why we can use them as test cases in unit testing to test the refined types extraction methods.

Desired solution

Parametrize the unit tests for extracting refined types from the JSON files in here.

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