@promptbook/vercel/esm/typings/src/book-components/Chat/utils/ChatPersistence.d.ts

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import type { ChatMessage } from '../types/ChatMessage';
/**
 * Utility functions for persisting chat conversations in localStorage
 *
 * @private util of `LlmChat`
 */
export declare class ChatPersistence {
    private static readonly STORAGE_PREFIX;
    /**
     * Save messages to localStorage under the given key
     */
    static saveMessages(persistenceKey: string, messages: ReadonlyArray<ChatMessage>): void;
    /**
     * Load messages from localStorage for the given key
     */
    static loadMessages(persistenceKey: string): ChatMessage[];
    /**
     * Clear messages from localStorage for the given key
     */
    static clearMessages(persistenceKey: string): void;
    /**
     * Check if localStorage is available
     */
    static isAvailable(): boolean;
}