/**
 * Copyright 2025 Angus.Fenying <fenying@litert.org>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import * as Shared from './Shared.decl';
import * as E from './Errors';
import type * as dT from '../transporters/Transporter.decl';
import { EventEmitter } from 'node:events';
import * as v2 from './Encodings/v2';
export interface IChannelEvents extends Shared.IDefaultEvents {
    close(): void;
    ['api_call'](callback: (response: v2.IDataChunkField | E.TelevokeError | E.TvErrorResponse) => void, name: string, args: Buffer[], sequence: number): void;
    ['push_message'](message: Buffer[], sequence: number): void;
    end(): void;
    finish(): void;
    warning(e: unknown): void;
}
export declare const decoder: v2.TvDecoderV2;
export declare const encoder: v2.TvEncoderV2;
export interface IPendingRequests {
    cmd: v2.ECommand;
    seq: number;
    timer?: NodeJS.Timeout;
    callback: (cmd: v2.ICommandPacket) => void;
}
export declare abstract class AbstractTvChannelV2 extends EventEmitter implements Shared.IChannelBase<IChannelEvents> {
    readonly id: number;
    readonly transporter: dT.ITransporter & Shared.ITransporter;
    timeout: number;
    protected _seqCounter: number;
    readonly context: Record<string, unknown>;
    /**
     * The context of requests sent out, waiting for replies.
     */
    protected _sentRequests: Record<string, IPendingRequests>;
    /**
     * The qty of received and not responded requests, waiting for replies.
     */
    protected _recvRequests: number;
    private _state;
    ended: boolean;
    get isMessageSupported(): boolean;
    get isBinaryStreamSupported(): boolean;
    get finished(): boolean;
    get writable(): boolean;
    readonly streams: Shared.IStreamManager;
    constructor(id: number, transporter: dT.ITransporter & Shared.ITransporter, timeout: number, streamManagerFactory: Shared.IStreamManagerFactory);
    private readonly _onData;
    private readonly _onConnError;
    private readonly _onConnClose;
    private readonly _onRemoteEnded;
    private readonly _onLocalEnded;
    private _setup;
    private _end;
    private _tryClean;
    private _isIdle;
    private _onResponse;
    private _reply;
    private _onRequest;
    protected _setTimeout(cmd: v2.ECommand, seq: number, callback: (packet: v2.ICommandPacket) => any): void;
    openBinaryStream(): Shared.IBinaryReadStream;
    ping(message?: Buffer | string): Promise<Buffer>;
    sendBinaryChunk(streamId: number, index: number | false, chunk: Buffer | null): Promise<void>;
    sendMessage(message: string | Buffer): Promise<void>;
    close(): void;
}
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