code: def initial_state(self, batch_size):
      if batch_size is not None:
          return jnp.ones([batch_size, 128, 1])
      else:
          return jnp.ones([128, 1])
  
imports: from collections.abc import Sequence
  from typing import Any, Callable, NamedTuple
  import haiku
  import jax
  import jax.numpy
  import numpy
label_desc: Use image node_id 1 for calling the DummyCore obj's underlying member method code with example usage: obj.initial_state(batch_size) and returns: jnp, jnp