import { BackgroundTypeUnion, Document } from '@airgram-dev/core';
/** Describes a chat background */
export declare class BackgroundBaseModel {
    _: 'background';
    /** Unique background identifier */
    id: string;
    /** True, if this is one of default backgrounds */
    isDefault: boolean;
    /** True, if the background is dark and is recommended to be used with dark theme */
    isDark: boolean;
    /** Unique background name */
    name: string;
    /** Document with the background; may be null. Null only for solid backgrounds */
    document?: Document;
    /** Type of the background */
    type: BackgroundTypeUnion;
}