How to use @ledgerhq/hw-transport-node-hid-singleton - 3 common examples

async listenForLedger () {
    if (this.listeningForLedger) {
      return
    }

    this.listeningForLedger = true
    this.transport = await LedgerTransport.create()
    this.ledger = new ArkLedger(this.transport)
    this.listeningForLedger = false
  }

export const listenDevices = (): * =>
  getEnv('EXPERIMENTAL_USB')
    ? Observable.create(TransportNodeHidSingleton.listen)
    : Observable.create(TransportNodeHid.listen)

() =>
          getEnv('EXPERIMENTAL_USB')
            ? TransportNodeHidSingleton.open()
            : TransportNodeHid.open(devicePath),
        { maxRetry: 4 },