fix(ci): Fix mypy errors, ruff lint, and bump proxy-extras to 0.4.38

- Fix mypy: use dict(Reasoning()) instead of Reasoning() for type compatibility
- Fix mypy: use setattr for dynamic provider_specific_fields attribute
- Fix mypy: avoid TypedDict dynamic key access in vertex_ai extra_body merge
- Fix mypy: use Any type for managed_vector_stores hook
- Fix mypy: cast scope to dict for MutableMapping compatibility
- Fix mypy: add assert for api_base None check in zscaler guard
- Fix ruff: remove unused cast import in vertex_ai_ingestion
- Bump litellm-proxy-extras to 0.4.38 (0.4.37 already published)

litellm-proxy-extras/pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "litellm-proxy-extras"
-version = "0.4.37"
+version = "0.4.38"
 description = "Additional files for the LiteLLM Proxy. Reduces the size of the main litellm package."
 authors = ["BerriAI"]
 readme = "README.md"
@@ -22,7 +22,7 @@ requires = ["poetry-core"]
 build-backend = "poetry.core.masonry.api"
 
 [tool.commitizen]
-version = "0.4.37"
+version = "0.4.38"
 version_files = [
     "pyproject.toml:version",
     "../requirements.txt:litellm-proxy-extras==",

litellm/rag/ingestion/vertex_ai_ingestion.py

@@ -10,7 +10,7 @@ Based on: https://docs.cloud.google.com/vertex-ai/generative-ai/docs/model-refer
 from __future__ import annotations
 
 import json
-from typing import TYPE_CHECKING, Any, Dict, List, Optional, Tuple, cast
+from typing import TYPE_CHECKING, Any, Dict, List, Optional, Tuple
 
 from litellm._logging import verbose_logger
 from litellm.llms.custom_httpx.http_handler import (