import type { KeyboardEvent } from "react";
export declare const MESSAGE_FOCUSABLE_ATTR = "data-msg-focusable";
/**
 * Up/Down on the message log moves focus between messages. The log renders
 * newest first in a column-reverse flex, so the next DOM node is the older message.
 */
export declare const handleMessageLogKeyDown: (event: KeyboardEvent<HTMLElement>) => void;
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