code: def test_kurtosis(self):
      result = pandas_ta.kurtosis(self.close)
      self.assertIsInstance(result, Series)
      self.assertEqual(result.name, "KURT_30")
  
imports: from .config import error_analysis, sample_data, CORRELATION, CORRELATION_THRESHOLD, VERBOSE
  from .context import pandas_ta
  from unittest import skip, TestCase
  import pandas.testing
  from pandas import DataFrame, Series
  import talib
label_desc: Use image node_id 6 for calling the TestStatistics obj's underlying member method code with example usage: obj.test_kurtosis() without return types