code: def test_methods(self):
      self.assertEqual(len(self.quantiles), 6)
      self.assertEqual(self.quantiles[2], 20)
      self.assertSequenceEqual(list(self.quantiles), self.values)
      self.assertEqual(repr(self.quantiles), repr(self.values))
  
file_path: agate/tests/test_utils.py
imports: import unittest
  from decimal import Decimal
  from agate.utils import Quantiles, letter_name, round_limits
label_desc: Use image node_id 2 for calling the TestQuantiles obj's underlying member method code with example usage: obj.test_methods() without return types