/**
 * @license
 * Copyright 2026 Alibaba Group Holding Limited
 * Copyright 2026 Qwen
 * SPDX-License-Identifier: Apache-2.0
 * Adapted to TypeScript from qwen-omni-realtime-agent; modified for Qwen Live Harness.
 */
import type { DatabaseSync } from 'node:sqlite';
import type { MemoryConfig, MemoryConnection, MemoryLogger } from './config.js';
export { OBSERVER_PROMPT } from './prompts.js';
export type MemoryVisualSource = 'screen' | 'camera';
export interface MemoryVisualFrame {
    image: string;
    source: MemoryVisualSource;
}
export declare function cleanObservation(text: unknown, maxChars?: number, log?: MemoryLogger): string;
export interface ObserverClientOptions {
    config: MemoryConfig['observer'];
    connection: MemoryConnection;
    log?: MemoryLogger;
    fetch?: typeof fetch;
    transport?: (prompt: string, frame: MemoryVisualFrame, signal?: AbortSignal) => Promise<string>;
}
export declare class ObserverClient {
    private readonly options;
    private readonly connection;
    constructor(options: ObserverClientOptions);
    get available(): boolean;
    observe(frame: MemoryVisualFrame, signal?: AbortSignal): Promise<string | undefined>;
}
export declare function recordObservation(database: DatabaseSync, content: string, sessionId: string, now?: Date, log?: MemoryLogger): number | undefined;