code: def test_alternative_forward(self):
      mod = deferred.Deferred(
          AlternativeForwardModule, call_methods=("forward",)
      )
      self.assertEqual(mod.forward(), 42)
  
imports: from absl.testing import absltest
  from absl.testing import parameterized
  from haiku._src import deferred
  from haiku._src import module
  from haiku._src import test_utils
  import jax.numpy
label_desc: Use image node_id 8 for calling the DeferredTest obj's underlying member method code with example usage: obj.test_alternative_forward() without return types