def fetch_hgnc():
    """Fetch the hgnc genes file from
        ftp://ftp.ebi.ac.uk/pub/databases/genenames/new/tsv/hgnc_complete_set.txt

    Returns:
        hgnc_gene_lines(list(str))
    """
    file_name = "hgnc_complete_set.txt"
    url = "ftp://ftp.ebi.ac.uk/pub/databases/genenames/new/tsv/{0}".format(file_name)
    LOG.info("Fetching HGNC genes from %s", url)

    hgnc_lines = fetch_resource(url)

    return hgnc_lines