def mimeType(fileName):
    """
    mimeType return mime type of known files by suffix

    Args:
        fileName (filepath.Path): file Path object

    Returns:
        str: known mime type for file defaults to application/octet-stream
    """

    if fileName.suffix.upper() in [".TTF", ".TTC"]:
        return "application/x-truetype-font"
    elif fileName.suffix.upper() in [".OTF"]:
        return "application/vnd.ms-opentype"
    elif fileName.suffix.upper() in [".ZIP"]:
        return "application/zip"
    elif fileName.suffix.upper() in [".JPG", ".JPEG"]:
        return "image/jpeg"
    elif fileName.suffix.upper() in [".PNG"]:
        return "image/png"

    return "application/octet-stream"