import * as React from 'react';
import type { IActivityItemProps } from './ActivityItem.types';
import type { JSXElement } from '@fluentui/utilities';
/**
 * {@docCategory ActivityItem}
 */
export declare class ActivityItem extends React.Component<IActivityItemProps, {}> {
    constructor(props: IActivityItemProps);
    render(): JSXElement;
    private _onRenderIcon;
    private _onRenderActivityDescription;
    private _onRenderComments;
    private _onRenderTimeStamp;
    private _onRenderPersonaArray;
    private _getClassNames;
}