def _get_placeholder(uri_config_option: str) -> str:
    """
    Get the placeholder from the uri_config_option
    """
    try:
        # i.e. issues_pr_uri -> pr
        return uri_config_option[:-4].split("_", maxsplit=1)[1]
    except IndexError:
        # issues_uri -> issue
        return uri_config_option[:-5]