code: def test_year_addition(self):
      self.perform_addition_test(
          test_data.year_addition_data, dateslib.PeriodType.YEAR
      )
  
imports: import datetime
  import numpy
  import tensorflow.compat.v2
  import tf_quant_finance
  from tf_quant_finance.datetime import test_data
  from tensorflow.python.framework import test_util
label_desc: Use image node_id 20 for calling the DateTensorTest obj's underlying member method code with example usage: obj.test_year_addition() without return types