clean up base infra

libs/events/examples/nats_example.py

@@ -3,7 +3,7 @@
 import asyncio
 import logging
 
-from libs.events import EventPayload, NATSEventBus, create_event_bus
+from libs.events import EventPayload, NATSEventBus
 
 # Configure logging
 logging.basicConfig(level=logging.INFO)
@@ -20,7 +20,7 @@ async def example_handler(topic: str, payload: EventPayload) -> None:
     )
 
 
-async def main():
+async def main() -> None:
     """Main example function."""
     # Method 1: Direct instantiation
     nats_bus = NATSEventBus(
@@ -67,7 +67,11 @@ async def main():
 
         # Publish an update event
         update_payload = EventPayload(
-            data={"user_id": "user-1", "name": "Updated User 1", "email": "user1@example.com"},
+            data={
+                "user_id": "user-1",
+                "name": "Updated User 1",
+                "email": "user1@example.com",
+            },
             actor="admin",
             tenant_id="tenant-123",
         )
@@ -86,7 +90,7 @@ async def main():
         logger.info("NATS event bus stopped")
 
 
-async def cluster_example():
+async def cluster_example() -> None:
     """Example with NATS cluster configuration."""
     # Connect to a NATS cluster
     cluster_bus = NATSEventBus(
@@ -117,9 +121,9 @@ async def cluster_example():
         await cluster_bus.stop()
 
 
-async def error_handling_example():
+async def error_handling_example() -> None:
     """Example showing error handling."""
-    
+
     async def failing_handler(topic: str, payload: EventPayload) -> None:
         """Handler that sometimes fails."""
         if payload.data.get("should_fail"):
@@ -127,7 +131,7 @@ async def error_handling_example():
         logger.info(f"Successfully processed event {payload.event_id}")
 
     bus = NATSEventBus()
-    
+
     try:
         await bus.start()
         await bus.subscribe("test.events", failing_handler)
@@ -157,7 +161,7 @@ async def error_handling_example():
 if __name__ == "__main__":
     # Run the basic example
     asyncio.run(main())
-    
+
     # Uncomment to run other examples:
     # asyncio.run(cluster_example())
     # asyncio.run(error_handling_example())