fix OCI linting errors (#13279)

* fix(types/llms/oci.py): fix linting errors

* fix(oci.py): fix linting error

* fix(oci.py): fix linting errors

* fix: fix linting error

* fix: fix linting error

litellm/llms/oci/chat/transformation.py

@@ -609,9 +609,9 @@ open_ai_to_generic_oci_role_map: Dict[str, OCIRoles] = {
 
 
 def adapt_messages_to_generic_oci_standard_content_message(
-    role: str, content: str | list
+    role: str, content: Union[str, list]
 ) -> OCIMessage:
-    new_content: list[OCIContentPartUnion] = []
+    new_content: List[OCIContentPartUnion] = []
     if isinstance(content, str):
         return OCIMessage(
             role=open_ai_to_generic_oci_role_map[role],
@@ -787,8 +787,8 @@ def adapt_tool_definition_to_oci_standard(tools: List[Dict], vendor: OCIVendors)
 
 
 def adapt_tools_to_openai_standard(
-    tools: list[OCIToolCall],
-) -> list[ChatCompletionMessageToolCall]:
+    tools: List[OCIToolCall],
+) -> List[ChatCompletionMessageToolCall]:
     new_tools = []
     for tool in tools:
         new_tool = ChatCompletionMessageToolCall(

litellm/types/llms/oci.py

@@ -1,9 +1,9 @@
 from __future__ import annotations
 
-from typing import Any, Literal, Union
+from enum import Enum
+from typing import Any, Dict, List, Literal, Optional, Union
 
 from pydantic import BaseModel
-from enum import Enum
 
 OCIRoles = Literal["SYSTEM", "USER", "ASSISTANT", "TOOL"]
 
@@ -24,7 +24,7 @@ class OCIVendors(Enum):
 class OCIContentPart(BaseModel):
     """Base model for content parts in an OCI message."""
 
-    type: str
+    pass
 
 
 class OCITextContentPart(OCIContentPart):
@@ -59,9 +59,9 @@ class OCIToolDefinition(BaseModel):
     """Defines a tool that can be used by the model."""
 
     type: Literal["FUNCTION"] = "FUNCTION"
-    name: str | None = None
-    description: str | None = None
-    parameters: dict | None = None
+    name: Optional[str] = None
+    description: Optional[str] = None
+    parameters: Optional[dict] = None
 
 
 # --- Message Models (Request and Response) ---
@@ -71,9 +71,9 @@ class OCIMessage(BaseModel):
     """Model for a single message in the request/response payload."""
 
     role: OCIRoles
-    content: list[OCIContentPartUnion] | None = None
-    toolCalls: list[OCIToolCall] | None = None
-    toolCallId: str | None = None
+    content: Optional[List[OCIContentPartUnion]] = None
+    toolCalls: Optional[List[OCIToolCall]] = None
+    toolCallId: Optional[str] = None
 
 
 # --- Request Payload Models ---
@@ -83,17 +83,17 @@ class OCIChatRequestPayload(BaseModel):
     """Internal 'chatRequest' payload for the OCI API."""
 
     apiFormat: str
-    messages: list[OCIMessage]
-    tools: list[OCIToolDefinition] | None = None
+    messages: List[OCIMessage]
+    tools: Optional[List[OCIToolDefinition]] = None
     isStream: bool = False
-    numGenerations: int | None = None
-    maxTokens: int | None = None
-    temperature: float | None = None
-    topP: float | None = None
-    stop: list[str] | None = None
-    seed: int | None = None
-    frequencyPenalty: float | None = None
-    presencePenalty: float | None = None
+    numGenerations: Optional[int] = None
+    maxTokens: Optional[int] = None
+    temperature: Optional[float] = None
+    topP: Optional[float] = None
+    stop: Optional[List[str]] = None
+    seed: Optional[int] = None
+    frequencyPenalty: Optional[float] = None
+    presencePenalty: Optional[float] = None
 
 
 class OCIServingMode(BaseModel):
@@ -142,8 +142,8 @@ class OCIResponseChoice(BaseModel):
 
     index: int
     message: OCIMessage
-    finishReason: str | None
-    logprobs: dict[str, Any] | None = None
+    finishReason: Optional[str] = None
+    logprobs: Optional[Dict[str, Any]] = None
 
 
 class OCIChatResponse(BaseModel):
@@ -151,7 +151,7 @@ class OCIChatResponse(BaseModel):
 
     apiFormat: str
     timeCreated: str
-    choices: list[OCIResponseChoice]
+    choices: List[OCIResponseChoice]
     usage: OCIResponseUsage
 
 
@@ -169,15 +169,15 @@ class OCICompletionResponse(BaseModel):
 class OCIStreamDelta(BaseModel):
     """The content delta in a streaming chunk."""
 
-    content: list[OCIContentPartUnion] | None = None
-    role: str | None = None
-    toolCalls: list[OCIToolCall] | None = None
+    content: Optional[List[OCIContentPartUnion]] = None
+    role: Optional[str] = None
+    toolCalls: Optional[List[OCIToolCall]] = None
 
 
 class OCIStreamChunk(BaseModel):
     """Model for a single SSE event chunk from OCI."""
 
-    finishReason: str | None = None
-    message: OCIStreamDelta | None = None
-    pad: str | None = None
-    index: int | None = None
+    finishReason: Optional[str] = None
+    message: Optional[OCIStreamDelta] = None
+    pad: Optional[str] = None
+    index: Optional[int] = None