[Feature Request] More comprehensive support for Github Toolkits

[Wendong-Fan]

Required prerequisites

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Motivation

Current Github toolkits supports

            OpenAIFunction(self.retrieve_issue_list),
            OpenAIFunction(self.retrieve_issue),
            OpenAIFunction(self.create_pull_request),
            OpenAIFunction(self.retrieve_pull_requests),

we need to further support code pulling

Solution

No response

Alternatives

No response

Additional context

No response

[WHALEEYE]

duplicated with #866, closed