code: def test_method_jit(self):
      class Fun:
          def __init__(self):
              self.a = Tensor.randn(10, 10)
  
          @TinyJit
          def __call__(self, b: Tensor) -> Tensor:
              return (self.a + b).realize()
  
      fun = Fun()
      for _ in range(5):
          b = Tensor.randn(10, 10)
          c = fun(b)
          np.testing.assert_allclose(
              c.numpy(), fun.a.numpy() + b.numpy(), atol=1e-4, rtol=1e-5
          )
      assert_jit_cache_len(fun.__call__.func.__self__, 1)
  
imports: import unittest, functools
  import numpy
  from test.helpers import assert_jit_cache_len
  from tinygrad.tensor import Tensor
  from tinygrad.jit import TinyJit
  from tinygrad.device import Device
  from tinygrad.helpers import CI
label_desc: Use image node_id 12 for calling the TestJit obj's underlying member method code with example usage: obj.test_method_jit() and returns: unknown