fix: errors with assistant and basic examples

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Latest commit: 9914508a8c4641d1c0865e2baf96170a3f94b88b

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Empirical Run Summary

	Run #2622: gpt-3.5-turbo	Run #e249: gpt-4-turbo-preview
Outputs	100%	100%
Avg latency	3152ms	2223ms

Total dataset samples: 2