import { MhtmlHeaders } from "./headers";
export type { MhtmlHeaders };
/** a file that was encoded in MHTML format */
export interface MhtmlFile {
    /** the files's headers */
    headers: MhtmlHeaders;
    /** the file's content */
    content: Uint8Array;
}
/** The decoder of any Content-Transfer-Encoding
 *
 * @param lines - each line of raw bytes
 * @returns data - decoded lines
 */
export type Decoder = (lines: AsyncIterable<Uint8Array>) => AsyncIterable<Uint8Array>;
/** options for mhtml parsing */
export interface ParseOptions {
    /** custom decoders for other Content-Transfer-Encodings */
    decoderOverrides?: Map<string, Decoder>;
}
/**
 * parse a readable stream into an async iterator of MHTML files
 *
 * decoderOverrides can be used to overwrite default encoders or specify your
 * own if a Content-Transfer-Encoding isn't handled properly
 */
export declare function parseMhtml(stream: AsyncIterable<Uint8Array>, { decoderOverrides }?: ParseOptions): AsyncIterableIterator<MhtmlFile>;