text: import unittest
  import sys
  
  import greenlet
  
  class ArgRefcountTests(unittest.TestCase):
      def test_arg_refs(self):
          args = ('a', 'b', 'c')
          g = greenlet.greenlet(
              lambda *args: greenlet.getcurrent().parent.switch(*args))
          for i in range(100):
              g.switch(*args)
          self.assertEquals(sys.getrefcount(args), 3)
  
      def test_kwarg_refs(self):
          kwargs = {}
          g = greenlet.greenlet(
              lambda **kwargs: greenlet.getcurrent().parent.switch(**kwargs))
          for i in range(100):
              g.switch(**kwargs)
          self.assertEquals(sys.getrefcount(kwargs), 2)
  