code: def test_call(self):
      layer = tl.ConvTranspose(30, (3, 3))
      x = np.ones((9, 5, 5, 20))
      layer.init(shapes.signature(x))
  
      y = layer(x)
      self.assertEqual(y.shape, (9, 7, 7, 30))
  
imports: from absl.testing import absltest
  import numpy
  from trax import shapes
  import trax.layers
label_desc: Use image node_id 1 for calling the ConvTransposeTest obj's underlying member method code with example usage: obj.test_call() without return types