added optional package_directory input (#1208) #855

Job	Run time
execute_notebooks (bug_free_python_code.ipynb)	1m 13s
execute_notebooks (check_for_pii.ipynb)	1m 40s
execute_notebooks (competitors_check.ipynb)	54s
execute_notebooks (extracting_entities.ipynb)	1m 38s
execute_notebooks (generate_structured_data.ipynb)	1m 24s
execute_notebooks (generate_structured_data_cohere.ipynb)	1m 28s
execute_notebooks (guardrails_with_chat_models.ipynb)	1m 26s
execute_notebooks (input_validation.ipynb)	1m 5s
execute_notebooks (llamaindex-output-parsing.ipynb)	53s
execute_notebooks (no_secrets_in_generated_text.ipynb)	1m 0s
execute_notebooks (provenance.ipynb)	3m 50s
execute_notebooks (recipe_generation.ipynb)	1m 36s
execute_notebooks (regex_validation.ipynb)	1m 9s
execute_notebooks (response_is_on_topic.ipynb)	2m 39s
execute_notebooks (secrets_detection.ipynb)	1m 6s
execute_notebooks (select_choice_based_on_action.ipynb)	1m 16s
execute_notebooks (syntax_error_free_sql.ipynb)	1m 8s
execute_notebooks (text_summarization_quality.ipynb)	3m 22s
execute_notebooks (toxic_language.ipynb)	2m 48s
execute_notebooks (translation_to_specific_language.ipynb)	1m 16s
execute_notebooks (translation_with_quality_check.ipynb)	3m 41s
execute_notebooks (valid_chess_moves.ipynb)	55s
execute_notebooks (value_within_distribution.ipynb)	3m 2s
	40m 29s

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