Test against live instance

There should be an optional way to run unit tests against a live instance and use the responses in place of the static ones currently defined in the tests.

Look at the existing unit tests to see how static responses are currently defined and used. Identify the API client code in the wrapper to understand how to make live calls. The goal is to add an optional mode that switches from static fixtures to real API responses, likely requiring configuration and mocking adjustments.

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