/// <reference types="node" />
import { HttpApi } from "./http";
export interface ApiMessageAttachment {
    id: string;
    createdAt: string;
    name: string;
    mimeType: string;
    checksumSha256: string;
    driver: string;
    sizeBytes: number;
}
export declare class MessageAttachment {
    private readonly http;
    readonly id: string;
    readonly createdAt: Date;
    readonly name: string;
    readonly mimeType: string;
    readonly checksumSha256: string;
    readonly sizeBytes: number;
    constructor(http: HttpApi, apiMessageAttachment: ApiMessageAttachment);
    /**
     * Download the contents of this attachment and put them in a Buffer.
     * Be aware that an attachment can be of significant size (we accept only up to 10MB per attachment)
     * and that using this method will load the entire attachment into memory.
     * If you want to download the attachment to a file directly, use downloadToFile() instead.
     */
    download(): Promise<Buffer>;
    /**
     * Download the contents of this attachment and write them to a file.
     * If you want to get the contents of the attachment in a Buffer, use download() instead.
     */
    downloadToFile(path: string): Promise<void>;
}