/**
 * [WHO]: CustomMessageComponent
 * [FROM]: Depends on @catui/tui, ../theme/theme.js
 * [TO]: Consumed by modes/interactive/components/index.ts
 * [HERE]: modes/interactive/components/custom-message.ts - extension custom message display
 */
import { Container, type MarkdownTheme } from "@catui/tui";
import type { MessageRenderer } from "../../../core/extensions-host/types.js";
import type { CustomMessage } from "../../../core/messages.js";
/**
 * Component that renders a custom message entry from extensions.
 * Uses distinct styling to differentiate from user messages.
 */
export declare class CustomMessageComponent extends Container {
    private nextContent;
    private message;
    private customRenderer?;
    private box;
    private customComponent?;
    private markdownTheme;
    private _expanded;
    constructor(message: CustomMessage<unknown>, customRenderer?: MessageRenderer, markdownTheme?: MarkdownTheme);
    private renderLegacy;
    private invalidateLegacy;
    render(width: number): string[];
    updateMessage(message: CustomMessage<unknown>): void;
    setExpanded(expanded: boolean): void;
    invalidate(): void;
    private rebuild;
}