async def close(self):
        """
        Close the underlying async Azure client session and credential.
        """
        if self._verbose:
            print(f"[AzureFoundryWorkflowAgent] Closing the session.")
        await self._client.close()
        await self._credential.close()

        Close the underlying async Azure client session and credential.
        
llama-index-integrations/agent/llama-index-agent-azure/llama_index/agent/azure_foundry_agent/base.py