code: import stripe
  stripe.api_key = "sk_test_4eC39HqLyjWDarjtT1zdp7dc"
  
  stripe.Topup.retrieve(
    "tu_1LSdsB2eZvKYlo2CPBrD5rKA",
  )
  '''Response {
    "id": "tu_1LSdsB2eZvKYlo2CPBrD5rKA",
    "object": "topup",
    "amount": 1000,
    "balance_transaction": null,
    "created": 123456789,
    "currency": "usd",
    "description": "Top-up description",
    "expected_availability_date": 123456789,
    "failure_code": null,
    "failure_message": null,
    "livemode": false,
    "metadata": {
      "order_id": "12345678"
    },
    "source": {
      "id": "src_1LSdsB2eZvKYlo2CYlHKaT69",
      "object": "source",
      "ach_debit": {
        "country": "US",
        "type": "individual",
        "routing_number": "110000000",
        "bank_name": "STRIPE TEST BANK",
        "fingerprint": "5Wh4KBcfDrz5IOnx",
        "last4": "6789"
      },
      "amount": null,
      "client_secret": "src_client_secret_ZM2Yk0vVDyBHyoH4ygVj8n1I",
      "created": 1659518895,
      "currency": "usd",
      "flow": "code_verification",
      "livemode": false,
      "metadata": {},
      "owner": {
        "address": null,
        "email": "jenny.rosen@example.com",
        "name": "Jenny Rosen",
        "phone": null,
        "verified_address": null,
        "verified_email": null,
        "verified_name": null,
        "verified_phone": null
      },
      "redaction": null,
      "statement_descriptor": null,
      "status": "pending",
      "type": "ach_debit",
      "usage": "reusable"
    },
    "statement_descriptor": null,
    "status": "pending",
    "transfer_group": null
  }'''
nl: Retrieve a top-upRetrieves the details of a top-up that has previously been created. Supply the unique top-up ID that was returned from your previous request, and Stripe will return the corresponding top-up information.ParametersNo parameters.ReturnsReturns a top-up if a valid identifier was provided, and raises an error otherwise