code: def test_cagr(self):
      result = pandas_ta.utils.cagr(self.data.close)
      self.assertIsInstance(result, float)
      self.assertGreater(result, 0)
  
imports: from unittest import skip, TestCase
  from pandas import DataFrame
  from .config import sample_data
  from .context import pandas_ta
label_desc: Use image node_id 5 for calling the TestUtilityMetrics obj's underlying member method code with example usage: obj.test_cagr() without return types