code: def get_2d_array(self):
      return random.normal(self.key, (self.nb_rows, self.nb_columns))
  
imports: import abc
  import enum
  import functools
  from typing import Any, Callable, Dict, Optional, Sequence, Tuple, Iterable
  from absl import logging
  from flax import linen
  import jax
  from jax import lax
  from jax import random
  import jax.numpy
  import numpy
  from scenic.model_lib.layers import attention_layers
label_desc: Use image node_id 2 for calling the GaussianUnstructuredRandomMatrix obj's underlying member method code with example usage: obj.get_2d_array() and returns: random