[Feature]: support sglang

[Tshiyao]

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When can you support sglang?

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[DavdGao]

Thanks for your attention. For now, you can reuse the openai config as follows:

{
    'model_config': 'my_config',
    'model_name': 'xxx',
    'model_type': 'openai_chat',
    # client args
    'client_args': {
        'base_url': 'http://127.0.0.1:{port}/v1',
        'api_key': None
    },
    # optional args
    # ...
}