code: def test_ichimoku(self):
      ichimoku, span = pandas_ta.ichimoku(
          self.high, self.low, self.close
      )
      self.assertIsInstance(ichimoku, DataFrame)
      self.assertIsInstance(span, DataFrame)
      self.assertEqual(ichimoku.name, "ICHIMOKU_9_26_52")
      self.assertEqual(span.name, "ICHISPAN_9_26")
  
imports: from .config import CORRELATION, CORRELATION_THRESHOLD, error_analysis, sample_data, VERBOSE
  from .context import pandas_ta
  from unittest import TestCase
  import pandas.testing
  from pandas import DataFrame, Series
  import talib
label_desc: Use image node_id 16 for calling the TestOverlap obj's underlying member method code with example usage: obj.test_ichimoku() without return types