import { BaseModel } from './base-model';
import { MediaType } from './media-type';
import { MediaAttachment } from './media-attachment';
/**
 * BaseModel with attachments.
 */
export declare abstract class ExtendedModel extends BaseModel {
    attachments: {
        [name: string]: MediaAttachment;
    };
    hasAttachment(name: string): boolean;
    get attachmentSize(): number;
    getMediaAttachments(mediaType: MediaType): {
        [name: string]: MediaAttachment;
    };
    get audioAttachments(): {
        [name: string]: MediaAttachment;
    };
    get imageAttachments(): {
        [name: string]: MediaAttachment;
    };
    get videoAttachments(): {
        [name: string]: MediaAttachment;
    };
    hasAudioAttachment(name: string): boolean;
    hasImageAttachment(name: string): boolean;
    hasVideoAttachment(name: string): boolean;
    get audioAttachmentSize(): number;
    get imageAttachmentSize(): number;
    get videoAttachmentSize(): number;
    get hasAudioAttachments(): boolean;
    get hasImageAttachments(): boolean;
    get hasVideoAttachments(): boolean;
    constructor(id?: (string | null), userId?: (string | null));
    toString(): string;
}