code: def test_sow_basic(self):
      class Foo(nnx.Module):
          def __call__(self, x):
              y = x + 1
              self.sow(nnx.Intermediate, "y", y)
              return y
  
      m = Foo()
      y1 = m(2)
      y2 = m(10)
  
      assert y1 == 3
      assert y2 == 11
      assert m.y == (3, 11)
  
      intermediates = m.pop(nnx.Intermediate)
  
      assert isinstance(intermediates.variables.y, nnx.Intermediate)
      assert intermediates["y"] == (3, 11)
  
      assert hasattr(m, "y")
      assert m.y is nnx.EMPTY
  
imports: import dataclasses
  from copy import deepcopy
  from typing import Any, TypeVar
  import jax
  import jax.numpy
  import pytest
  from flax.experimental import nnx
label_desc: Use image node_id 17 for calling the TestModule obj's underlying member method code with example usage: obj.test_sow_basic() and returns: y