SDK Docs Updates

Hi there,

Are there plans in place to update the SDK reference found at <https://a2a-protocol.org/latest/sdk/python/>? There are numerous classes, methods & helper functions which are not yet included.
- `AgentExecutor`
- `EventQueue`
- `TaskUpdater`
- `new_agent_text_message`
- `new_task`
Just to name a few from looking through some projects in the samples repo.

Cheers