async def get_branch(
        self,
        owner: str,
        repo: str,
        branch: Optional[str] = None,
        branch_name: Optional[str] = None,
        timeout: Optional[int] = 5,
        retries: int = 0,
    ) -> GitBranchResponseModel:
        """
        Get information about a branch. (Github API endpoint: getBranch).

        Args:
            - `owner (str)`: Owner of the repository.
            - `repo (str)`: Name of the repository.
            - `branch (str)`: Name of the branch.
            - `branch_name (str)`: Name of the branch (alternative to `branch`).
            - `timeout (int or None)`: Timeout for the request in seconds. Default is 5.
            - `retries (int)`: Number of retries for the request. Default is 0.

        Returns:
            - `branch_info (GitBranchResponseModel)`: Information about the branch.

        Examples:
            >>> branch_info = client.get_branch("owner", "repo", "branch")

        """
        if branch is None:
            if branch_name is None:
                raise ValueError("Either branch or branch_name must be provided.")
            branch = branch_name

        return GitBranchResponseModel.from_json(
            (
                await self.request(
                    "getBranch",
                    "GET",
                    owner=owner,
                    repo=repo,
                    branch=branch,
                    timeout=timeout,
                    retries=retries,
                )
            ).text
        )

        Get information about a branch. (Github API endpoint: getBranch).

        Args:
            - `owner (str)`: Owner of the repository.
            - `repo (str)`: Name of the repository.
            - `branch (str)`: Name of the branch.
            - `branch_name (str)`: Name of the branch (alternative to `branch`).
            - `timeout (int or None)`: Timeout for the request in seconds. Default is 5.
            - `retries (int)`: Number of retries for the request. Default is 0.

        Returns:
            - `branch_info (GitBranchResponseModel)`: Information about the branch.

        Examples:
            >>> branch_info = client.get_branch("owner", "repo", "branch")

        
llama-index-integrations/readers/llama-index-readers-github/llama_index/readers/github/repository/github_client.py