import { Serializable } from '../internals/serializable.js';
import { a as ChatModel, F as FullModelName } from '../chat-CfTNfR60.js';
import { EmbeddingModel } from './embedding.js';
import { ProviderName } from './constants.js';
import { OptionalExcept } from '../internals/types.js';
import '../internals/helpers/guards.js';
import './message.js';
import 'ai';
import '../context.js';
import '../emitter-kHxkUxco.js';
import '../internals/helpers/promise.js';
import '../errors.js';
import 'promise-based-task';
import '../cache/base.js';
import '../tools/base.js';
import 'ajv';
import '../internals/helpers/schema.js';
import 'zod';
import 'zod-to-json-schema';
import '../template.js';
import '../logger/logger.js';
import 'pino';

/**
 * Copyright 2025 © BeeAI a Series of LF Projects, LLC
 * SPDX-License-Identifier: Apache-2.0
 */

interface BackendModels {
    chat: ChatModel;
    embedding: EmbeddingModel;
}
declare class Backend extends Serializable implements BackendModels {
    chat: ChatModel;
    embedding: EmbeddingModel;
    constructor(models: BackendModels);
    static fromName(input: OptionalExcept<Record<keyof BackendModels, FullModelName | ProviderName>, "chat">): Promise<Backend>;
    static fromProvider(provider: ProviderName): Promise<Backend>;
    createSnapshot(): {
        chat: ChatModel;
        embedding: EmbeddingModel;
    };
    loadSnapshot(snapshot: ReturnType<typeof this.createSnapshot>): void;
}

export { Backend };