fix: remove unused Optional imports after UP045 migration

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

litellm/llms/anthropic/chat/handler.py

@@ -11,7 +11,6 @@ from typing import (
     Dict,
     List,
     Literal,
-    Optional,
     Tuple,
     Union,
     cast,

litellm/llms/base_llm/rerank/transformation.py

@@ -1,5 +1,5 @@
 from abc import ABC, abstractmethod
-from typing import TYPE_CHECKING, Any, Dict, List, Optional, Tuple, Union
+from typing import TYPE_CHECKING, Any, Dict, List, Tuple, Union
 
 import httpx
 

litellm/llms/cohere/rerank/transformation.py

@@ -1,4 +1,4 @@
-from typing import Any, Dict, List, Optional, Union
+from typing import Any, Dict, List, Union
 
 import httpx
 

litellm/llms/cohere/rerank_v2/transformation.py

@@ -1,4 +1,4 @@
-from typing import Any, Dict, List, Optional, Union
+from typing import Any, Dict, List, Union
 
 from litellm.llms.cohere.rerank.transformation import CohereRerankConfig
 from litellm.types.rerank import OptionalRerankParams, RerankRequest

litellm/llms/dashscope/rerank/transformation.py

@@ -22,7 +22,7 @@ as supported only for gte-rerank-v2 / qwen3-vl-rerank.
 Docs - https://help.aliyun.com/zh/model-studio/text-rerank-api
 """
 
-from typing import Any, Dict, List, Optional, Union
+from typing import Any, Dict, List, Union
 
 import httpx
 

litellm/llms/deepinfra/rerank/transformation.py

@@ -2,7 +2,7 @@
 Translate between Cohere's `/rerank` format and Deepinfra's `/rerank` format.
 """
 
-from typing import Any, Dict, List, Optional, Union
+from typing import Any, Dict, List, Union
 
 import httpx
 

litellm/llms/fireworks_ai/rerank/transformation.py

@@ -4,7 +4,7 @@ Fireworks AI Rerank API transformation
 Reference: https://docs.fireworks.ai/inference-api-reference/rerank
 """
 
-from typing import Any, Dict, List, Optional, Union
+from typing import Any, Dict, List, Union
 
 import httpx
 

litellm/llms/github_copilot/chat/transformation.py

@@ -1,5 +1,5 @@
 import json
-from typing import Any, List, Optional, Tuple
+from typing import Any, List, Tuple
 
 import os
 

litellm/llms/hosted_vllm/rerank/transformation.py

@@ -2,7 +2,7 @@
 Transformation logic for Hosted VLLM rerank
 """
 
-from typing import Any, Dict, List, Optional, Union
+from typing import Any, Dict, List, Union
 
 import httpx
 

litellm/llms/huggingface/rerank/transformation.py

@@ -1,5 +1,5 @@
 import os
-from typing import TYPE_CHECKING, Any, Dict, List, Optional, Tuple, Union
+from typing import TYPE_CHECKING, Any, Dict, List, Tuple, Union
 
 import httpx
 from typing_extensions import TypedDict

litellm/llms/jina_ai/rerank/transformation.py

@@ -6,7 +6,7 @@ Why separate file? Make it easy to see how transformation works
 Docs - https://jina.ai/reranker
 """
 
-from typing import Any, Dict, List, Optional, Tuple, Union
+from typing import Any, Dict, List, Tuple, Union
 
 from httpx import URL, Response
 

litellm/llms/nvidia_nim/rerank/transformation.py

@@ -1,4 +1,4 @@
-from typing import Any, Dict, List, Literal, Optional, Union
+from typing import Any, Dict, List, Literal, Union
 
 import httpx
 from typing_extensions import Required, TypedDict

litellm/llms/vertex_ai/rerank/transformation.py

@@ -4,7 +4,7 @@ Translates from Cohere's `/v1/rerank` input format to Vertex AI Discovery Engine
 Why separate file? Make it easy to see how transformation works
 """
 
-from typing import Any, Dict, List, Optional, Union
+from typing import Any, Dict, List, Union
 
 import httpx
 

litellm/llms/voyage/rerank/transformation.py

@@ -4,7 +4,7 @@ Transformation logic for Voyage AI's /v1/rerank endpoint.
 Docs - https://docs.voyageai.com/docs/reranker
 """
 
-from typing import Any, Dict, List, Optional, Tuple, Union
+from typing import Any, Dict, List, Tuple, Union
 
 import httpx
 

litellm/llms/watsonx/rerank/transformation.py

@@ -5,7 +5,7 @@ Docs - https://cloud.ibm.com/apidocs/watsonx-ai#text-rerank
 """
 
 import uuid
-from typing import Any, Dict, List, Optional, Union, cast
+from typing import Any, Dict, List, Union, cast
 
 import httpx
 

litellm/proxy/spend_tracking/cold_storage_handler.py

@@ -4,7 +4,6 @@ This module is responsible for handling Getting/Setting the proxy server request
 It allows fetching a dict of the proxy server request from s3 or GCS bucket.
 """
 
-from typing import Optional
 
 import litellm
 from litellm import _custom_logger_compatible_callbacks_literal

litellm/proxy/spend_tracking/spend_management_endpoints.py

@@ -11,7 +11,6 @@ from typing import (
     Literal,
     Mapping,
     NamedTuple,
-    Optional,
     Union,
 )
 

litellm/rerank_api/main.py

@@ -1,7 +1,7 @@
 import asyncio
 import contextvars
 from functools import partial
-from typing import Any, Coroutine, Dict, List, Literal, Optional, Union
+from typing import Any, Coroutine, Dict, List, Literal, Union
 
 import litellm
 from litellm._logging import verbose_logger

litellm/rerank_api/rerank_utils.py

@@ -1,4 +1,4 @@
-from typing import Any, Dict, List, Optional, Union
+from typing import Any, Dict, List, Union
 
 from litellm.llms.base_llm.rerank.transformation import BaseRerankConfig