export interface MimeHeader {
    name: string;
    value: string;
}
export interface MimePart {
    contentType: string;
    headers: MimeHeader[];
    filename: string | undefined;
    bytes: Uint8Array;
    parts: MimePart[];
}
/**
 * Parse an RFC 822 / MIME document (`.eml`, `.mhtml`) or an mbox of such
 * documents into a part tree. Transfer encodings are decoded; charset is not.
 */
export declare function parseMime(bytes: Uint8Array): MimePart;
/** Preorder walk including `root`. */
export declare function walkMimeParts(root: MimePart): MimePart[];
/** First `text/html` leaf that is not an attachment (honors `start=`). */
export declare function mimeTextHtml(root: MimePart): MimePart | undefined;
/** First `text/plain` leaf that is not an attachment. */
export declare function mimeTextPlain(root: MimePart): MimePart | undefined;
/**
 * Leaf parts that are not the chosen text bodies. Includes `attachment`
 * disposition, related resources, and unnamed non-text leaves.
 */
export declare function mimeAttachments(root: MimePart): MimePart[];
/** Last header of `name` (case-insensitive). */
export declare function mimeHeader(part: MimePart, name: string): string | undefined;