import * as React from "react";
import { SingleSessionGuardState } from "../../state/SessionState.definitions";
interface MultiSessionAlertState {
    secondsLeft: number;
}
export declare class MultiSessionAlert extends React.PureComponent<SingleSessionGuardState, MultiSessionAlertState> {
    state: {
        secondsLeft: number;
    };
    componentDidMount(): void;
    componentDidUpdate(oldProps: SingleSessionGuardState): void;
    componentWillUnmount(): void;
    private runTick;
    render(): JSX.Element;
}
export {};