code: def nested(x):
      class OuterModule(module.Module):
          def __call__(self, x):
              return Bias(name="inner")(x)
  
      return OuterModule(name="outer")(x)
  
imports: from absl.testing import absltest
  from absl.testing import parameterized
  from haiku._src import base
  from haiku._src import config
  from haiku._src import lift
  from haiku._src import module
  from haiku._src import multi_transform
  from haiku._src import stateful
  from haiku._src import test_utils
  from haiku._src import transform
  import jax
  import jax.numpy
  import numpy
label_desc: Use image node_id 4 for calling a global function with example usage: nested(x) and returns: OuterModule, Bias