Use importlib for lazy calls

[ofekashery]

The __import__ function is an internal and intended for use by the Python interpreter only - not for general use.

It’s safer to use importlib.import_module(), which removes the need for manual handling and reduces potential errors.

[ofekashery]

@nateprewitt

[nateprewitt]

Thanks for the PR, @ofekashery! I've restarted a fresh run of CI to make sure things work as expected. Assuming that comes back working, I'll do some final validation and we can look at merging this.

[nateprewitt]

Looks like there was a leftover sys import that wasn't cleaned up which linting is flagging. I pushed up a small commit to address that. Once the build finishes, we should be ready to merge.

[nateprewitt]

Thanks again, @ofekashery!