import { BoxProps } from '../Box/Box';
interface ChatMessageHeaderOwnProps {
    attached?: boolean | 'top' | 'bottom';
    hasReactionGroup?: boolean;
}
export interface ChatMessageHeaderProps extends ChatMessageHeaderOwnProps, BoxProps {
}
export declare type ChatMessageHeaderStylesProps = never;
export declare const chatMessageHeaderClassName = "ui-chat__messageheader";
/**
 * A ChatMessageHeader provides a slot for author/date/reactions for the ChatMessage.
 */
export declare const ChatMessageHeader: import("@fluentui/react-bindings").ComponentWithAs<"div", ChatMessageHeaderOwnProps & BoxProps>;
export {};