import type { CoreMessage } from 'ai';
export declare class ChatArrayMemory {
    private readonly memory;
    /**
     * Optional hard limit on the number of messages to keep. If provided, the
     * stored conversation will be truncated to the *last* `maxMessages` items
     * before persisting so that upstream BufferWindowMemory `k` setting is
     * respected.
     */
    private readonly maxMessages;
    constructor(memory: any, // BufferMemory or BufferWindowMemory
    /**
     * Optional hard limit on the number of messages to keep. If provided, the
     * stored conversation will be truncated to the *last* `maxMessages` items
     * before persisting so that upstream BufferWindowMemory `k` setting is
     * respected.
     */
    maxMessages?: number | null);
    /**
     * Load the stored chat array by concatenating every JSON array that was
     * persisted on previous turns.  This keeps the database lean (one delta per
     * turn) while still letting us reconstruct the full conversation for the
     * next prompt.  We apply an optional `maxMessages` window **after**
     * reconstruction so the caller controls how much context is sent to the
     * model without losing older history in the DB.
     */
    load(): Promise<CoreMessage[]>;
    /**
     * Persist the messages produced in the *current* run (delta).  We expect the
     * caller to pass **only** the new messages, so we just insert them as a JSON
     * array.  Nothing is truncated – historical context remains intact in the DB.
     */
    save(messages: CoreMessage[]): Promise<void>;
}