/// <reference types="node" />
import { WellKnownMimeType } from "./WellKnownMimeType";
export declare class CompositeMetadata implements Iterable<Entry> {
    _buffer: Buffer;
    constructor(buffer: Buffer);
    iterator(): Iterator<Entry>;
    [Symbol.iterator](): Iterator<Entry>;
}
export declare function encodeCompositeMetadata(metadata: Map<string | WellKnownMimeType | number, Buffer | (() => Buffer)> | Array<[string | WellKnownMimeType | number, Buffer | (() => Buffer)]>): Buffer;
export declare function encodeAndAddCustomMetadata(compositeMetaData: Buffer, customMimeType: string, metadata: Buffer): Buffer;
export declare function encodeAndAddWellKnownMetadata(compositeMetadata: Buffer, knownMimeType: WellKnownMimeType | number, metadata: Buffer): Buffer;
export declare function decodeMimeAndContentBuffersSlices(compositeMetadata: Buffer, entryIndex: number): Buffer[];
export declare function decodeMimeTypeFromMimeBuffer(flyweightMimeBuffer: Buffer): string;
export declare function encodeCustomMetadataHeader(customMime: string, metadataLength: number): Buffer;
export declare function encodeWellKnownMetadataHeader(mimeType: number, metadataLength: number): Buffer;
export declare function decodeCompositeMetadata(buffer: Buffer): Generator<Entry, void, any>;
export interface Entry {
    /**
     * Returns the un-decoded content of the {@link Entry}.
     *
     * @return the un-decoded content of the {@link Entry}
     */
    readonly content: Buffer;
    /**
     * Returns the MIME type of the entry, if it can be decoded.
     *
     * @return the MIME type of the entry, if it can be decoded, otherwise {@code null}.
     */
    readonly mimeType?: string;
}
export declare class ExplicitMimeTimeEntry implements Entry {
    readonly content: Buffer;
    readonly type: string;
    constructor(content: Buffer, type: string);
}
export declare class ReservedMimeTypeEntry implements Entry {
    readonly content: Buffer;
    readonly type: number;
    constructor(content: Buffer, type: number);
    /**
     * Since this entry represents a compressed id that couldn't be decoded, this is
     * always {@code null}.
     */
    get mimeType(): string;
}
export declare class WellKnownMimeTypeEntry implements Entry {
    readonly content: Buffer;
    readonly type: WellKnownMimeType;
    constructor(content: Buffer, type: WellKnownMimeType);
    get mimeType(): string;
}