updating code

Author: aahill

articles/ai-services/agents/how-to/tools/file-search-upload-files.md

@@ -74,7 +74,7 @@ from azure.ai.agents.models import FilePurpose
 file_path = "./data/product_info_1.md"
 
 # Upload the file
-file = project_client.agents.upload_file_and_poll(file_path=file_path, purpose=FilePurpose.AGENTS)
+file = project_client.agents.files.upload_file_and_poll(file_path=file_path, purpose=FilePurpose.AGENTS)
 print(f"Uploaded file, file ID: {file.id}")
 
 # Create a vector store with the uploaded file