[Feature Request] Add AgentConfig class

[dandansamax]

Required prerequisites

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Motivation

Current ChatAgent includes too much parameters in the init function, which is hard to understand and be properly configured.

A config class for agent will highly optimize the code structure as well as improve user exeprience. The target is to reproduce any single agent implementation by only modifying the AgentConfig class. Therefore, the config should at least include:

• Model type
• Backend model config
• All prompts to be used
• Output language
• OpenAI function call list
• Memory config
• An customizable step function that can reuse most of existing member functions in ChatAgent

Solution

A good solution may be the factory method pattern.

Alternatives

No response

Additional context

No response