def METHOD_NAME(repo: str) -> str:
    """Returns a fully-qualified repo URL on GitHub from a string containing
    "owner/repo".
    This returns an https URL by default, but will return an ssh URL if
    AUTOSYNTH_USE_SSH is set.
    """
    if USE_SSH:
        return f"git@github.com:{repo}.git"
    else:
        return f"https://github.com/{repo}.git"