import React from 'react';
interface ReasoningBlockProps {
    content: string;
    isStreaming?: boolean;
}
/**
 * Collapsible block that displays model reasoning/thinking content.
 * Shows a dimmed "Thinking..." header with the reasoning text below.
 * Can be toggled with 't' key when not in streaming mode.
 */
export declare function ReasoningBlock({ content, isStreaming }: ReasoningBlockProps): React.JSX.Element;
export {};
