diff --git a/src/pipecat/services/qwen/llm.py b/src/pipecat/services/qwen/llm.py
index de910a741..2ffc6bc80 100644
--- a/src/pipecat/services/qwen/llm.py
+++ b/src/pipecat/services/qwen/llm.py
@@ -4,6 +4,8 @@
 # SPDX-License-Identifier: BSD 2-Clause License
 #
 
+"""Qwen LLM service implementation using OpenAI-compatible interface."""
+
 from loguru import logger
 
 from pipecat.services.openai.llm import OpenAILLMService
@@ -16,10 +18,10 @@ class QwenLLMService(OpenAILLMService):
     maintaining full compatibility with OpenAI's interface and functionality.
 
     Args:
-        api_key (str): The API key for accessing Qwen's API (DashScope API key)
-        base_url (str, optional): Base URL for Qwen API. Defaults to "https://dashscope-intl.aliyuncs.com/compatible-mode/v1"
-        model (str, optional): The model identifier to use. Defaults to "qwen-plus".
-        **kwargs: Additional keyword arguments passed to OpenAILLMService
+        api_key: The API key for accessing Qwen's API (DashScope API key).
+        base_url: Base URL for Qwen API. Defaults to "https://dashscope-intl.aliyuncs.com/compatible-mode/v1".
+        model: The model identifier to use. Defaults to "qwen-plus".
+        **kwargs: Additional keyword arguments passed to OpenAILLMService.
     """
 
     def __init__(
@@ -34,6 +36,15 @@ class QwenLLMService(OpenAILLMService):
         logger.info(f"Initialized Qwen LLM service with model: {model}")
 
     def create_client(self, api_key=None, base_url=None, **kwargs):
-        """Create OpenAI-compatible client for Qwen API endpoint."""
+        """Create OpenAI-compatible client for Qwen API endpoint.
+
+        Args:
+            api_key: API key for authentication. If None, uses instance default.
+            base_url: Base URL for the API. If None, uses instance default.
+            **kwargs: Additional arguments passed to the parent client creation.
+
+        Returns:
+            An OpenAI-compatible client configured for Qwen's API.
+        """
         logger.debug(f"Creating Qwen client with base URL: {base_url}")
         return super().create_client(api_key, base_url, **kwargs)