/**
 * Copyright (c) Microsoft Corporation.
 *
 * 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
 *
 *     http://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 type * as channels from '@protocol/channels';
export declare class MultipartFormData {
    private readonly _boundary;
    private readonly _chunks;
    constructor();
    contentTypeHeader(): string;
    addField(name: string, value: string): void;
    addFileField(name: string, value: NonNullable<channels.FormField['file']>): void;
    finish(): Buffer;
    private _beginMultiPartHeader;
    private _finishMultiPartHeader;
    private _finishMultiPartField;
    private _addBoundary;
}
//# sourceMappingURL=formData.d.ts.map