[Doc] Add engine args back in to the docs (#20674)

Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>

vllm/reasoning/abs_reasoning_parsers.py

@@ -7,14 +7,22 @@ import os
 from abc import abstractmethod
 from collections.abc import Sequence
 from functools import cached_property
-from typing import Callable, Optional, Union
+from typing import TYPE_CHECKING, Any, Callable, Optional, Union
 
-from vllm.entrypoints.openai.protocol import (ChatCompletionRequest,
-                                              DeltaMessage, ResponsesRequest)
 from vllm.logger import init_logger
-from vllm.transformers_utils.tokenizer import AnyTokenizer
 from vllm.utils import import_from_path, is_list_of
 
+if TYPE_CHECKING:
+    from vllm.entrypoints.openai.protocol import (ChatCompletionRequest,
+                                                  DeltaMessage,
+                                                  ResponsesRequest)
+    from vllm.transformers_utils.tokenizer import AnyTokenizer
+else:
+    ChatCompletionRequest = Any
+    DeltaMessage = Any
+    ResponsesRequest = Any
+    AnyTokenizer = Any
+
 logger = init_logger(__name__)