old_contents: #!/usr/bin/env python
  
  from bson import dumps, loads
  from decimal import Decimal
  from unittest import TestCase
  
  class TestUnknownHandler(TestCase):
      def test_unknown_handler(self):
          d = Decimal("123.45")
          obj = {"decimal": d}
  
          serialized = dumps(obj, on_unknown=float)
  	unserialized = loads(serialized)
  	self.assertEqual(float(d), unserialized["decimal"])
  
  
new_contents: #!/usr/bin/env python
  
  from bson import dumps, loads
  from decimal import Decimal
  from unittest import TestCase
  
  class TestUnknownHandler(TestCase):
      def test_unknown_handler(self):
          d = Decimal("123.45")
          obj = {"decimal": d}
  
          serialized = dumps(obj, on_unknown=float)
          unserialized = loads(serialized)
          self.assertEqual(float(d), unserialized["decimal"])
  
  
subject: Fix tab