code: def test_boolean_cast(self):
      values = (True, False)
      casted = tuple(self.type.cast(v) for v in values)
      self.assertSequenceEqual(casted, (Decimal("1"), Decimal("0")))
  
imports: import datetime
  import pickle
  import unittest
  from decimal import Decimal
  import parsedatetime
  from agate.data_types import Boolean, Date, DateTime, Number, Text, TimeDelta
  from agate.exceptions import CastError
label_desc: Use image node_id 4 for calling the TestNumber obj's underlying member method code with example usage: obj.test_boolean_cast() without return types