Update llamaindex_conversable_agent.py

autogen/agentchat/contrib/llamaindex_conversable_agent.py

@@ -16,10 +16,10 @@
     from llama_index.core.agent.runner.base import AgentRunner
     from llama_index.core.base.llms.types import ChatMessage
     from llama_index.core.chat_engine.types import AgentChatResponse
-
     from packaging import version
     from pydantic import BaseModel
     from pydantic import __version__ as pydantic_version
+
     # let's Avoid: AttributeError: type object 'Config' has no attribute 'copy'
     if version.parse(pydantic_version) >= version.parse("2.0.0"):
         from pydantic import ConfigDict