def _get_issue_type(f_issue):
    """
    https://github.com/scieloorg/opac-airflow/blob/1064b818fda91f73414a6393d364663bdefa9665/airflow/dags/sync_kernel_to_website.py#L511
    https://github.com/scieloorg/opac_proc/blob/3c6bd66040de596e1af86a99cca6d205bfb79a68/opac_proc/transformers/tr_issues.py#L76
    'ahead', 'regular', 'special', 'supplement', 'volume_issue'
    """
    if f_issue.suppl:
        return "supplement"
    if f_issue.number:
        if f_issue.number == "ahead":
            return "ahead"
        if "spe" in f_issue.number:
            return "special"
        return "regular"
    return "volume_issue"