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import * as http from 'https://deno.land/x/node_http@0.0.16/mod.ts'import type { AddressInfo } from 'https://deno.land/x/node_http@0.0.16/mod.ts'
export default class Server {  readonly _server: http.Server  private readonly _startedServer: boolean = false  readonly url: string
  private constructor(server: http.Server, address: AddressInfo, started: boolean) {    this._server = server    this._startedServer = started    this.url = `http://localhost:${address.port}`  }
  static create(server: http.Server): Promise<Server> {    return new Promise((resolve, reject) => {      server.once('error', reject)
      server.once('listening', () => {        const address = server.address() as AddressInfo
        resolve(new Server(server, address, true))      })
      server.listen()    })  }
  close() {    if (this._startedServer) this._server.close()  }}