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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def git_branch_rename(new_name):
 # type: (str) -> None """ Rename the current branch Args: new_name (str):
 New name for the current branch. """

    curr_name = git.current_branch(refresh=True).name

    if curr_name not in git.protected_branches():
        log.info("Renaming branch from <33>{}<32> to <33>{}".format(
            curr_name, new_name
        ))
        shell.run('git branch -m {}'.format(new_name))