code: def setUp(self):
      dates = [
          [2021, 2, 8],
          [2022, 2, 8],
          [2023, 2, 8],
          [2025, 2, 8],
          [2027, 2, 8],
          [2030, 2, 8],
          [2050, 2, 8],
      ]
      discounts = [
          0.97197441,
          0.94022746,
          0.91074031,
          0.85495089,
          0.8013675,
          0.72494879,
          0.37602059,
      ]
      self._market_data_dict = {
          "rates": {
              "USD": {
                  "risk_free_curve": {
                      "dates": dates,
                      "discounts": discounts,
                  },
                  "LIBOR_3M": {"dates": dates, "discounts": discounts},
              }
          },
          "reference_date": [(2020, 6, 24)],
      }
      super(CashflowStreamsTest, self).setUp()
  
file_path: tf-quant-finance/tf_quant_finance/experimental/pricing_platform/framework/rate_instruments/cashflow_streams_test.py
imports: from absl.testing import parameterized
  import tensorflow.compat.v2
  import tf_quant_finance
  from tensorflow.python.framework import test_util
label_desc: Use image node_id 1 for calling the CashflowStreamsTest obj's underlying member method code with example usage: obj.setUp() without return types