code: def test_custom_name(self):
      layer = tl.Layer()
      self.assertIn("Layer", str(layer))
      self.assertNotIn("CustomLayer", str(layer))
  
      layer = tl.Layer(name="CustomLayer")
      self.assertIn("CustomLayer", str(layer))
  
imports: from absl.testing import absltest
  from absl.testing import parameterized
  import numpy
  from trax import fastmath
  from trax import shapes
  from trax.fastmath import numpy
  import trax.layers
label_desc: Use image node_id 9 for calling the BaseLayerTest obj's underlying member method code with example usage: obj.test_custom_name() without return types