Interface IHeader

interface IHeader {
    documentMessage?: IDocumentMessage | null;
    hasMediaAttachment?: boolean | null;
    imageMessage?: IImageMessage | null;
    jpegThumbnail?: Uint8Array<ArrayBufferLike> | null;
    locationMessage?: ILocationMessage | null;
    productMessage?: IProductMessage | null;
    subtitle?: string | null;
    title?: string | null;
    videoMessage?: IVideoMessage | null;
}