import type { Component, KeybindingsManager } from '@earendil-works/pi-tui';
export type TuiHeaderModel = {
    version: string;
    connectionLabel: string;
    sessionKey: string;
    showHints: boolean;
};
/** Collapsible startup header (pi-style hints subset). */
export declare class TuiHeader implements Component {
    private readonly getModel;
    private readonly keybindings?;
    private extensionLines;
    private extensionComponents;
    constructor(getModel: () => TuiHeaderModel, keybindings?: KeybindingsManager);
    setExtensionLines(lines: string[]): void;
    setExtensionComponents(components: Component[]): void;
    setCustomComponent(component: Component | undefined): void;
    invalidate(): void;
    private getCompactHints;
    render(width: number): string[];
    private customComponent;
}