code: def test_zero_inputs(self):
      layer = rms_norm.RMSNorm([1, 2])
      inputs = np.zeros([2, 3, 3, 5])
      outputs = layer(inputs)
      for x in np.nditer(outputs):
          self.assertEqual(x, 0.0)
  
imports: from absl.testing import absltest
  from absl.testing import parameterized
  from haiku._src import initializers
  from haiku._src import rms_norm
  from haiku._src import test_utils
  from haiku._src import transform
  import jax
  import jax.numpy
  import numpy
label_desc: Use image node_id 5 for calling the RMSNormTest obj's underlying member method code with example usage: obj.test_zero_inputs() without return types