import { Stream$, VirtualDOM } from '@youwol/flux-view';
import { BehaviorSubject } from 'rxjs';
export declare namespace ExpandableGroup {
    class State {
        readonly name: string;
        expanded$: BehaviorSubject<boolean>;
        constructor(name: string, expanded$?: BehaviorSubject<boolean> | boolean);
    }
    const defaultHeaderClass = "fv-bg-background-alt fv-text-primary fv-color-primary rounded fv-pointer d-flex align-items-center";
    const defaultBodyClass = "fv-bg-background fv-text-primary fv-color-primary rounded p-3";
    function defaultHeaderView(state: State): {
        class: string;
        children: ({
            tag: string;
            class: Stream$<boolean, string>;
            innerText?: undefined;
            style?: undefined;
        } | {
            tag: string;
            class: string;
            innerText: string;
            style: {
                'user-select': string;
            };
        })[];
    };
    function simpleExpandableGroup(name: string, contentView: VirtualDOM): View;
    class View implements VirtualDOM {
        static defaultClass: string;
        readonly state: State;
        readonly className: string | Stream$<unknown, string>;
        children: [VirtualDOM, VirtualDOM];
        constructor({ state, headerView, contentView, ...rest }: {
            state: State;
            headerView: (state: State) => VirtualDOM;
            contentView: (state: State) => VirtualDOM;
            [_key: string]: unknown;
        });
    }
}