import * as React from 'react';
export declare type AnnounceMethod = (message: string) => void;
export interface AnnounceProps {
    announceMessage?: string;
    /**
     * Only used for the prop.announceMessage way of passing the message.
     * This is especially useful for giving messages from searches/filters.
     */
    debounceDelay?: number;
    politeness?: 'polite' | 'assertive';
    /**
     * This gives back a direct function for supplying an announcement for the screen reader.
     * This does not have any delay built into it.
     * If a new message comes in, the first may be cut off.
     */
    setAnnounceMethod?: (announceMethod: AnnounceMethod) => void;
}
/**
 * Give an announcement to the screen reader to read.
 * Can be done via a prop or via a direct method using the setAnnounceMethod prop.
 */
export declare class ReactAnnounce extends React.Component<AnnounceProps, {
    message: string;
}> {
    state: {
        message: string;
    };
    componentDidMount(): void;
    componentDidUpdate(prevProps: AnnounceProps): void;
    debounceDelay: () => number;
    debouncePropMessage: (() => void) & import("lodash").Cancelable;
    updateMessage: (message?: string | undefined) => void;
    announceMethod: AnnounceMethod;
    render(): JSX.Element;
}