code: def test_call_rebatch(self):
      layer = tl.Conv(30, (3, 3))
      x = np.ones((2, 9, 5, 5, 20))
      layer.init(shapes.signature(x))
  
      y = layer(x)
      self.assertEqual(y.shape, (2, 9, 3, 3, 30))
  
file_path: trax/trax/layers/convolution_test.py
imports: from absl.testing import absltest
  import numpy
  from trax import shapes
  import trax.layers
label_desc: Use image node_id 4 for calling the ConvolutionTest obj's underlying member method code with example usage: obj.test_call_rebatch() without return types