ruff linting

src/pipecat/serializers/genesys.py

@@ -9,7 +9,7 @@ Features:
 - Input/output variables for Architect flow integration
 - DTMF event support
 - Barge-in (interruption) events
-- Pause/resume support for hold scenarios
+- Pause/resume support for hold scenarios (optional)
 
 Protocol Reference:
 - https://developer.genesys.cloud/devapps/audiohook
@@ -49,6 +49,7 @@ from pipecat.serializers.base_serializer import FrameSerializer
 
 class AudioHookMessageType(str, Enum):
     """AudioHook protocol message types."""
+
     OPEN = "open"
     OPENED = "opened"
     CLOSE = "close"
@@ -65,15 +66,17 @@ class AudioHookMessageType(str, Enum):
 
 class AudioHookChannel(str, Enum):
     """AudioHook audio channel configuration."""
+
     EXTERNAL = "external"  # Customer audio only (mono)
     INTERNAL = "internal"  # Agent audio only (mono)
-    BOTH = "both"          # Stereo: external=left, internal=right
+    BOTH = "both"  # Stereo: external=left, internal=right
 
 
 class AudioHookMediaFormat(str, Enum):
     """Supported audio formats."""
+
     PCMU = "PCMU"  # μ-law, 8kHz
-    L16 = "L16"    # 16-bit linear PCM, 8kHz
+    L16 = "L16"  # 16-bit linear PCM, 8kHz
 
 
 class GenesysAudioHookSerializer(FrameSerializer):
@@ -200,7 +203,6 @@ class GenesysAudioHookSerializer(FrameSerializer):
         self._register_event_handler("on_error")
         self._register_event_handler("on_dtmf")
 
-
     @property
     def session_id(self) -> str:
         """Get the Genesys AudioHook session ID generated by the serializer."""
@@ -477,11 +479,7 @@ class GenesysAudioHookSerializer(FrameSerializer):
         """
         msg = self._create_message(
             AudioHookMessageType.EVENT,
-            parameters={
-                "entities": [
-                    {"type": "barge_in", "data": {}}
-                ]
-            },
+            parameters={"entities": [{"type": "barge_in", "data": {}}]},
         )
 
         logger.debug("🔇 Barge-in event sent to Genesys")
@@ -572,7 +570,11 @@ class GenesysAudioHookSerializer(FrameSerializer):
             the frame type is not handled or session is not open.
         """
         if isinstance(frame, (EndFrame, CancelFrame)):
-            return json.dumps(self.create_disconnect_message(output_variables=self.output_variables, reason="completed"))
+            return json.dumps(
+                self.create_disconnect_message(
+                    output_variables=self.output_variables, reason="completed"
+                )
+            )
 
         elif isinstance(frame, AudioRawFrame):
             if not self._is_open or self._is_paused:
@@ -670,7 +672,9 @@ class GenesysAudioHookSerializer(FrameSerializer):
             # For PCMU, each sample is 1 byte
             # Extract only bytes at even positions (left channel = external)
             audio_data = bytes(data[i] for i in range(0, len(data), 2))
-            logger.debug(f"🔊 Stereo audio: {original_len} bytes → {len(audio_data)} bytes (external channel)")
+            logger.debug(
+                f"🔊 Stereo audio: {original_len} bytes → {len(audio_data)} bytes (external channel)"
+            )
 
         if self._params.media_format == AudioHookMediaFormat.PCMU:
             # Convert μ-law at 8kHz to PCM at pipeline rate
@@ -699,7 +703,6 @@ class GenesysAudioHookSerializer(FrameSerializer):
 
         return audio_frame
 
-
     async def _handle_control_message(self, message: Dict[str, Any]) -> Frame | None:
         """Handle a JSON control message from Genesys.
 
@@ -783,7 +786,9 @@ class GenesysAudioHookSerializer(FrameSerializer):
         if media_list and isinstance(media_list, list) and len(media_list) > 0:
             audio_media: Dict[str, Any] = media_list[0]  # Get first media entry
             channels = audio_media.get("channels", [])
-            logger.debug(f"📡 Genesys audio config: format={audio_media.get('format')}, channels={channels}, rate={audio_media.get('rate')}")
+            logger.debug(
+                f"📡 Genesys audio config: format={audio_media.get('format')}, channels={channels}, rate={audio_media.get('rate')}"
+            )
             # channels is a list like ["external"] or ["external", "internal"]
             if isinstance(channels, list):
                 if "external" in channels and "internal" in channels:
@@ -805,11 +810,13 @@ class GenesysAudioHookSerializer(FrameSerializer):
 
         await self._call_event_handler("on_open", message)
 
-        return OutputTransportMessageUrgentFrame(message=self.create_opened_response(
-            start_paused=self._params.start_paused,
-            supported_languages=self._params.supported_languages,
-            selected_language=self._params.selected_language
-        ))
+        return OutputTransportMessageUrgentFrame(
+            message=self.create_opened_response(
+                start_paused=self._params.start_paused,
+                supported_languages=self._params.supported_languages,
+                selected_language=self._params.selected_language,
+            )
+        )
 
     async def _handle_close(self, message: Dict[str, Any]) -> Frame | None:
         """Handle a 'close' message from Genesys.