Method once

packages/cli/src/utils/compositionServer.ts:11–11

(event: "listening" | "error", listener: (err?: NodeJS.ErrnoException) => void)

interface PortBindable {
  listen(port: number): unknown;
  once(event: "listening" | "error", listener: (err?: NodeJS.ErrnoException) => void): unknown;
  removeListener(
    event: "listening" | "error",
    listener: (err?: NodeJS.ErrnoException) => void,