code: def test_log_max_drawdown(self):
      result = pandas_ta.log_max_drawdown(self.close)
      self.assertIsInstance(result, float)
      self.assertGreaterEqual(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 10 for calling the TestUtilityMetrics obj's underlying member method code with example usage: obj.test_log_max_drawdown() without return types