(code quality) run ruff rule to ban unused imports (#7313)

* remove unused imports

* fix AmazonConverseConfig

* fix test

* fix import

* ruff check fixes

* test fixes

* fix testing

* fix imports

litellm/llms/bedrock/chat/invoke_handler.py

@@ -4,25 +4,12 @@ Manages calling Bedrock's `/converse` API + `/invoke` API
 
 import copy
 import json
-import os
 import time
 import types
 import urllib.parse
 import uuid
-from enum import Enum
 from functools import partial
-from typing import (
-    Any,
-    AsyncIterator,
-    Callable,
-    Iterator,
-    List,
-    Literal,
-    Optional,
-    Tuple,
-    TypedDict,
-    Union,
-)
+from typing import Any, AsyncIterator, Callable, Iterator, List, Optional, Tuple, Union
 
 import httpx  # type: ignore
 
@@ -32,8 +19,6 @@ from litellm.caching.caching import InMemoryCache
 from litellm.litellm_core_utils.core_helpers import map_finish_reason
 from litellm.litellm_core_utils.litellm_logging import Logging
 from litellm.litellm_core_utils.prompt_templates.factory import (
-    _bedrock_converse_messages_pt,
-    _bedrock_tools_pt,
     cohere_message_pt,
     construct_tool_use_system_prompt,
     contains_tag,
@@ -50,13 +35,7 @@ from litellm.llms.custom_httpx.http_handler import (
 )
 from litellm.types.llms.bedrock import *
 from litellm.types.llms.openai import (
-    ChatCompletionResponseMessage,
     ChatCompletionToolCallChunk,
-    ChatCompletionToolCallFunctionChunk,
-    ChatCompletionToolChoiceFunctionParam,
-    ChatCompletionToolChoiceObjectParam,
-    ChatCompletionToolParam,
-    ChatCompletionToolParamFunctionChunk,
     ChatCompletionUsageBlock,
 )
 from litellm.types.utils import GenericStreamingChunk as GChunk
@@ -65,7 +44,6 @@ from litellm.utils import CustomStreamWrapper, get_secret
 
 from ..base_aws_llm import BaseAWSLLM
 from ..common_utils import BedrockError, ModelResponseIterator, get_bedrock_tool_name
-from .converse_transformation import AmazonConverseConfig
 
 _response_stream_shape_cache = None
 bedrock_tool_name_mappings: InMemoryCache = InMemoryCache(
@@ -597,7 +575,6 @@ class BedrockLLM(BaseAWSLLM):
         client: Optional[Union[AsyncHTTPHandler, HTTPHandler]] = None,
     ) -> Union[ModelResponse, CustomStreamWrapper]:
         try:
-            import boto3
             from botocore.auth import SigV4Auth
             from botocore.awsrequest import AWSRequest
             from botocore.credentials import Credentials