import { MessageStorage } from "./MessageStorage";
import { StorageDirectoryEntry, StreamDirectoryEntry } from "compound-binary-file-js";
import { PropertiesStream } from "./property/PropertiesStream";
import { NamedPropertyMappingStorage } from "./nameid_mapping/NamedPropertyMappingStorage";
export declare class Attachment extends MessageStorage {
    constructor(directoryEntry: StorageDirectoryEntry, namedPropertyMappingStorage: NamedPropertyMappingStorage);
    protected createPropertiesStream(stream: StreamDirectoryEntry): PropertiesStream;
    content(): number[];
}