/// <reference types="node" />
import { ExecFileException, ExecFileOptionsWithBufferEncoding } from 'child_process';
import * as Vinyl from 'vinyl';
export declare const protoc: (args: ReadonlyArray<string> | undefined | null, options: ExecFileOptionsWithBufferEncoding, callback: (error: ExecFileException | null, stdout: Buffer, stderr: Buffer) => void) => void;
export declare const library: (files: string[], callback: (Error?: Error | undefined, files?: Vinyl.BufferFile[] | undefined) => void) => void;