/**
 * Tier Gate
 *
 * Utilities for checking tier access and feature gating
 */
import type { Tier } from '../types/auth.js';
export declare function getUpgradeMessage(currentTier: Tier, feature: string): string;
export declare function getNextTier(currentTier: Tier): Tier | null;
export declare function getUpgradeOptions(currentTier: Tier): Tier[];
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