import Topic, { TopicData } from './topic';
import Model, { ModelData } from './model';
import Theme, { ThemeData } from './theme';
import { StyleKey } from '../common/constants/styles';
import { StyleData } from './style';
export interface SheetData extends ModelData {
    title: string;
    rootTopic: TopicData;
    style?: StyleData;
    theme?: ThemeData;
}
export default class Sheet extends Model {
    private _rootTopic;
    private _theme;
    private readonly _data;
    constructor(data: SheetData);
    private init;
    get rootTopic(): Topic;
    get theme(): Theme;
    getStyleValue(key: StyleKey): string;
}