Feature request: Tool calling for Openai (compatiable) agent and using Openai (compatiable) agent as SupervisorAgent (python)

### Use case

missing tool calling for Openai (compatiable) agent,
and SupervisorAgent depends on tool calling.

### Solution/User Experience

Add tool calling for Openai (compatiable) agent and then using Openai (compatiable) agent as SupervisorAgent

### Alternative solutions

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