import React, { Component, KeyboardEvent } from 'react';
interface ICollapsibleProps {
    readonly title?: string;
    readonly icon?: React.ReactNode;
    readonly initiallyCollapsed?: boolean;
    readonly hasBottomBorder?: boolean;
    readonly tabIndex?: number;
    readonly onToggle?: (on: boolean) => void;
}
interface IState {
    collapsed: boolean | undefined;
    overflow: string | null;
}
declare class Collapsible extends Component<ICollapsibleProps, IState> {
    static defaultProps: {
        initiallyCollapsed: boolean;
        hasBottomBorder: boolean;
    };
    state: {
        collapsed: boolean | undefined;
        overflow: string | null;
    };
    componentDidMount(): Promise<void>;
    childRef: React.RefObject<HTMLDivElement>;
    toggleCollapse: () => Promise<void>;
    handleTransitionEnd: () => void;
    onKeyPress: (e: KeyboardEvent) => false | Promise<void>;
    render(): JSX.Element;
}
export default Collapsible;