baidubce/app-builder ? reverse-engineered prompt

Build me a Python SDK for Baidu Qianfan AppBuilder that helps developers quickly create AI native apps.

I want it to make it easy to call large language models, use ready made AI components, connect to AppBuilder apps, and manage knowledge bases for RAG style apps. It should also support building simple workflows and agent style apps, with helpful tracing and debug logs so I can see what is happening when something goes wrong.

Please include a few clear getting started examples, one for chatting with a model, one for using a search or RAG style component, and one for calling an AppBuilder app. It would be great if it can run as an API service and also as a chat style frontend for testing. Use the current docs online if you need to.