[SDK] Gen meta before update signatures

[D-W-]

Description

Please add an informative description that covers that changes made by the pull request and link all relevant issues.

This pull request includes changes that primarily focus on modifying the handling of flow variants and initial keyword arguments (init_kwargs) in the promptflow-devkit package. The most significant changes involve removing the usage of ProxyFactory and its prepare_metadata method, adding init_kwargs parameter to various methods and functions, and modifying the flow_overwrite_context function to accommodate these changes.

Here are the key changes, grouped by their themes:

Removal of ProxyFactory:

• src/promptflow-devkit/promptflow/_sdk/_orchestrator/run_submitter.py: Removed the import of ProxyFactory and its usage in _submit_bulk_run method. [1] [2]

Changes to init_kwargs handling:

• src/promptflow-devkit/promptflow/_sdk/_orchestrator/run_submitter.py: Added init_kwargs as a parameter to the flow_overwrite_context in the _run_bulk method.
• src/promptflow-devkit/promptflow/_sdk/_orchestrator/test_submitter.py: Added init_kwargs as a parameter to the _resolve_variant method and used it in the init method. Removed the usage of ProxyFactory and its prepare_metadata method in the init method. [1] [2] [3]
• src/promptflow-devkit/promptflow/_sdk/_orchestrator/utils.py: Added init_kwargs as a parameter to the override_flow_yaml and flow_overwrite_context functions. Also, moved the prepare_metadata method call to the override_flow_yaml function. [1] [2] [3] [4]

These changes seem to simplify the codebase by reducing the reliance on the ProxyFactory and its prepare_metadata method, and provide a more consistent way of handling init_kwargs across different methods and functions.

All Promptflow Contribution checklist:

• The pull request does not introduce [breaking changes].
• CHANGELOG is updated for new features, bug fixes or other significant changes.
• I have read the contribution guidelines.
• Create an issue and link to the pull request to get dedicated review from promptflow team. Learn more: suggested workflow.

General Guidelines and Best Practices

• Title of the pull request is clear and informative.
• There are a small number of commits, each of which have an informative message. This means that previously merged commits do not appear in the history of the PR. For more information on cleaning up the commits in your PR, see this page.

Testing Guidelines

• Pull request includes test coverage for the included changes.

[github-actions]

promptflow SDK CLI Azure E2E Test Result wanhan/fix_c_sharp_meta_generation

  4 files    4 suites   4m 9s ⏱️
242 tests 206 ✅  36 💤 0 ❌
968 runs  824 ✅ 144 💤 0 ❌

Results for commit ed8828b.

♻️ This comment has been updated with latest results.

[github-actions]

SDK CLI Global Config Test Result wanhan/fix_c_sharp_meta_generation

6 tests   6 ✅  1m 13s ⏱️
1 suites  0 💤
1 files    0 ❌

Results for commit ed8828b.

♻️ This comment has been updated with latest results.

[github-actions]

Executor Unit Test Result wanhan/fix_c_sharp_meta_generation

792 tests   792 ✅  3m 44s ⏱️
  1 suites    0 💤
  1 files      0 ❌

Results for commit ed8828b.

♻️ This comment has been updated with latest results.

[github-actions]

Executor E2E Test Result wanhan/fix_c_sharp_meta_generation

243 tests   238 ✅  5m 35s ⏱️
  1 suites    5 💤
  1 files      0 ❌

Results for commit ed8828b.

♻️ This comment has been updated with latest results.

[github-actions]

SDK CLI Test Result wanhan/fix_c_sharp_meta_generation

    4 files      4 suites   1h 2m 25s ⏱️
  708 tests   667 ✅  41 💤 0 ❌
2 832 runs  2 668 ✅ 164 💤 0 ❌

Results for commit ed8828b.

♻️ This comment has been updated with latest results.