code: def test_dynamic_kwarg(self):
      def fn(a, b):
          return a - b * 10
  
      torch._dynamo.reset()
      cnt_dynamic = torch._dynamo.testing.CompileCounter()
      opt_fn = torch._dynamo.optimize(cnt_dynamic, dynamic=True)(fn)
      start = 2
      end = 12
      steps = end - start
      for i in range(start, end):
          opt_fn(torch.randn(i), torch.randn(i))
  
      self.assertEqual(cnt_dynamic.frame_count, 1)
  
imports: from unittest.mock import patch
  import torch
  import torch._dynamo.test_case
  import torch._dynamo.testing
  from torch._dynamo.testing import unsupported
  from torch._dynamo.utils import ifdynstaticdefault
label_desc: Use image node_id 32 for calling the SubGraphTests obj's underlying member method code with example usage: obj.test_dynamic_kwarg() and returns: unknown