[Chore] Rename `utils` submodules (#26920)

Signed-off-by: DarkLight1337 <tlleungac@connect.ust.hk>

vllm/utils/async_utils.py → vllm/utils/asyncio.py

 # SPDX-License-Identifier: Apache-2.0
 # SPDX-FileCopyrightText: Copyright contributors to the vLLM project
-"""Contains helpers related to asynchronous code."""
+"""
+Contains helpers related to asynchronous code.
+
+This is similar in concept to the `asyncio` module.
+"""
 
 import asyncio
 import contextlib

vllm/v1/engine/async_llm.py

@@ -30,8 +30,8 @@ from vllm.transformers_utils.config import maybe_register_config_serialize_by_va
 from vllm.transformers_utils.tokenizer import AnyTokenizer, init_tokenizer_from_configs
 from vllm.usage.usage_lib import UsageContext
 from vllm.utils import Device, as_list, cdiv
-from vllm.utils.async_utils import cancel_task_threadsafe
-from vllm.utils.func import deprecate_kwargs
+from vllm.utils.asyncio import cancel_task_threadsafe
+from vllm.utils.functools import deprecate_kwargs
 from vllm.v1.engine import EngineCoreRequest
 from vllm.v1.engine.core_client import EngineCoreClient
 from vllm.v1.engine.exceptions import EngineDeadError, EngineGenerateError

vllm/v1/engine/core_client.py

@@ -29,7 +29,7 @@ from vllm.utils import (
     get_open_zmq_inproc_path,
     make_zmq_socket,
 )
-from vllm.utils.async_utils import in_loop
+from vllm.utils.asyncio import in_loop
 from vllm.v1.engine import (
     EngineCoreOutputs,
     EngineCoreRequest,