refactor: (GenAI) Reorganized Model Tuning Samples (Group B)

[Thoughtseize1]

Description

Created a new folder: /generative_ai/model_tuning/

Region_tag	New file
generativeaionvertexai_evaluate_model	evaluate_model_example.py
generativeaionvertexai_create_evaluation_task	create_evaluation_task_example.py
generativeaionvertexai_cancel_tuning_job	supervised_cancel_example.py
generativeaionvertexai_list_tuning_jobs	supervised_list_example.py
generativeaionvertexai_tuning_basic	supervised_example.py
generativeaionvertexai_tuning_advanced	supervised_advanced_example.py
generativeaionvertexai_get_tuning_job	supervised_get_example.py
generativeaionvertexai_sdk_distillation	distillation_example.py
generativeaionvertexai_sdk_tune_code_generation_model	pretrained_codegen_example.py
generativeaionvertexai_tune_code_generation_model	tune_code_generation_model.py
generativeaionvertexai_sdk_tuning	pretrained_textgen_example.py
generativeaionvertexai_tuning	tuning.py
generativeaionvertexai_sdk_list_tuned_models	pretrained_list_example.py

Tests for pretrained_codegen_example, pretrained_list_example, pretrained_textgen_example are in pretrained_examples_test.py

❗Files need to be deleted after approval:

• generative_ai/evaluate_model.py
• generative_ai/evaluate_model_test.py
• generative_ai/gemini_rapid_evaluation.py
• generative_ai/gemini_rapid_evaluation_test.py
• generative_ai/gemini_tuning.py
• generative_ai/gemini_tuning_test.py
• generative_ai/distillation.py
• generative_ai/distillation_test.py
• generative_ai/tune_code_generation_model.py
• generative_ai/tune_code_generation_model_test.py
• generative_ai/tuning.py
• generative_ai/tuning_test.py
• generative_ai/list_tuned_models.py
• generative_ai/list_tuned_models_test.py

Checklist

• I have followed Sample Guidelines from AUTHORING_GUIDE.MD
• README is updated to include all relevant information
• Tests pass: nox -s py-3.9 (see Test Environment Setup)
• Lint pass: nox -s lint (see Test Environment Setup)
• These samples need a new API enabled in testing projects to pass (let us know which ones)
• These samples need a new/updated env vars in testing projects set to pass (let us know which ones)
• This sample adds a new sample directory, and I updated the CODEOWNERS file with the codeowners for this sample
• This sample adds a new Product API, and I updated the Blunderbuss issue/PR auto-assigner with the codeowners for this sample
• Please merge this PR for me once it is approved

[snippet-bot]

Here is the summary of changes.

You are about to add 13 region tags.

• generative_ai/model_tuning/create_evaluation_task_example.py:22, tag generativeaionvertexai_create_evaluation_task
• generative_ai/model_tuning/distillation_example.py:15, tag generativeaionvertexai_sdk_distillation
• generative_ai/model_tuning/evaluate_model_example.py:15, tag generativeaionvertexai_evaluate_model
• generative_ai/model_tuning/pretrained_codegen_example.py:15, tag generativeaionvertexai_sdk_tune_code_generation_model
• generative_ai/model_tuning/pretrained_list_example.py:21, tag generativeaionvertexai_sdk_list_tuned_models
• generative_ai/model_tuning/pretrained_textgen_example.py:15, tag generativeaionvertexai_sdk_tuning
• generative_ai/model_tuning/supervised_advanced_example.py:23, tag generativeaionvertexai_tuning_advanced
• generative_ai/model_tuning/supervised_cancel_example.py:22, tag generativeaionvertexai_cancel_tuning_job
• generative_ai/model_tuning/supervised_example.py:23, tag generativeaionvertexai_tuning_basic
• generative_ai/model_tuning/supervised_get_example.py:24, tag generativeaionvertexai_get_tuning_job
• generative_ai/model_tuning/supervised_list_example.py:25, tag generativeaionvertexai_list_tuning_jobs
• generative_ai/model_tuning/tune_code_generation_model.py:23, tag generativeaionvertexai_tune_code_generation_model
• generative_ai/model_tuning/tuning.py:25, tag generativeaionvertexai_tuning

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[msampathkumar]

LGTM