Update app.py

app.py

@@ -22,13 +22,17 @@ pipeline = KPipeline(lang_code='a')  # 'a' stands for American English
 
 @tool
 def text_to_speech_kokoro(text: str, voice: str = 'af_heart', speed: float = 1.0) -> str:
-    """Convert text to speech using the Kokoro-82M model.
-    
-    Args:
-        text (str): The text to be converted to speech.
-        voice (str, optional): The voice to use for speech synthesis. Defaults to 'af_heart'.
-        speed (float, optional): The speed of the speech. Defaults to 1.0.
-    
+    """
+    Convert text to speech using the Kokoro-82M model.
+
+    Parameters:
+        text (str): 
+            The text to be converted to speech.
+        voice (str, optional): 
+            The voice to use for speech synthesis. Defaults to 'af_heart'.
+        speed (float, optional): 
+            The speed of the speech. Defaults to 1.0.
+
     Returns:
         str: The path to the generated audio file.
     """