Python: [BREAKING]: removed display_name, renamed context_providers, middleware and AggregateContextProvider (#3139)

* removed display_name, renamed context_providers, middleware and AggregateContextProvider

* fixes

* fixed test

* testfix

* removed mistakenly put back test

* updated new test

* rename middlewares to middleware

* middleware fixes

python/samples/getting_started/purview_agent/README.md

@@ -116,18 +116,18 @@ This is only needed if you want to integrate with external caching systems.
 ```python
 class SimpleDictCacheProvider:
     """Custom cache provider that implements the CacheProvider protocol."""
-    
+
     def __init__(self) -> None:
         self._cache: dict[str, Any] = {}
-    
+
     async def get(self, key: str) -> Any | None:
         """Get a value from the cache."""
         return self._cache.get(key)
-    
+
     async def set(self, key: str, value: Any, ttl_seconds: int | None = None) -> None:
         """Set a value in the cache."""
         self._cache[key] = value
-    
+
     async def remove(self, key: str) -> None:
         """Remove a value from the cache."""
         self._cache.pop(key, None)

python/samples/getting_started/purview_agent/sample_purview_agent.py

@@ -154,7 +154,7 @@ async def run_with_agent_middleware() -> None:
         chat_client=chat_client,
         instructions=JOKER_INSTRUCTIONS,
         name=JOKER_NAME,
-        middleware=purview_agent_middleware,
+        middleware=[purview_agent_middleware],
     )
 
     print("-- Agent Middleware Path --")
@@ -239,7 +239,7 @@ async def run_with_custom_cache_provider() -> None:
         chat_client=chat_client,
         instructions=JOKER_INSTRUCTIONS,
         name=JOKER_NAME,
-        middleware=purview_agent_middleware,
+        middleware=[purview_agent_middleware],
     )
 
     print("-- Custom Cache Provider Path --")
@@ -279,7 +279,7 @@ async def run_with_custom_cache_provider() -> None:
         chat_client=chat_client,
         instructions=JOKER_INSTRUCTIONS,
         name=JOKER_NAME,
-        middleware=purview_agent_middleware,
+        middleware=[purview_agent_middleware],
     )
 
     print("-- Default Cache Path --")