code: def test_flatten_invalid_preserve_dims(self):
      with self.assertRaisesRegex(
          ValueError, "Argument preserve_dims should be non-zero."
      ):
          reshape.Flatten(preserve_dims=0)
  
imports: import unittest
  from absl.testing import absltest
  from absl.testing import parameterized
  from haiku._src import reshape
  from haiku._src import test_utils
  from haiku._src import transform
  import jax
  from jax.experimental import jax2tf
  import jax.numpy
  import numpy
label_desc: Use image node_id 10 for calling the ReshapeTest obj's underlying member method code with example usage: obj.test_flatten_invalid_preserve_dims() without return types