[doc] fix doc to work in all known repos.

recipe_engine/unittests/recipe_api_test.py

Index: recipe_engine/unittests/recipe_api_test.py
diff --git a/recipe_engine/unittests/recipe_api_test.py b/recipe_engine/unittests/recipe_api_test.py
index 239b0ffcc5f4808acd3377c9f8db4f78a82aa58b..f0907e25be5554e36170cad474912beb668857f9 100755
--- a/recipe_engine/unittests/recipe_api_test.py
+++ b/recipe_engine/unittests/recipe_api_test.py
@@ -16,7 +16,7 @@ def make_prop(**kwargs):
 class TestProperties(unittest.TestCase):
   def testDefault(self):
     """Tests the default option of properties."""
-    for default in (1, object(), "test", None):
+    for default in (1, {}, "test", None):
       prop = make_prop(default=default)
       self.assertEqual(default, prop.interpret(recipe_api.PROPERTY_SENTINEL))