/**
 * Copyright 2019 Google LLC
 *
 * 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.
 */
/// <reference types="node" />
export declare enum PcapPacketDirection {
    IN = 0,
    OUT = 1
}
export default class PcapWriter {
    static linkTypePPPWithDir: number;
    private fd;
    constructor(path: string, linkType: number);
    close(): void;
    private writeHeader;
    writePacket(direction: PcapPacketDirection, data: Buffer): void;
}