code: def test_zero(self):
      self.assertEqual(self.utils.zero(-0.0000000000000001), 0)
      self.assertEqual(self.utils.zero(0), 0)
      self.assertEqual(self.utils.zero(0.0), 0)
      self.assertEqual(self.utils.zero(0.0000000000000001), 0)
  
      self.assertNotEqual(self.utils.zero(-0.000000000000001), 0)
      self.assertNotEqual(self.utils.zero(0.000000000000001), 0)
      self.assertNotEqual(self.utils.zero(1), 0)
  
imports: from .config import sample_data
  from .context import pandas_ta
  from unittest import skip, TestCase
  from unittest.mock import patch
  import numpy
  import numpy.testing
  from pandas import DataFrame, Series
  from pandas.api.types import is_datetime64_ns_dtype, is_datetime64tz_dtype
label_desc: Use image node_id 27 for calling the TestUtilities obj's underlying member method code with example usage: obj.test_zero() without return types