code: def test_bias_dims_custom(self):
      b, d1, d2, d3 = range(1, 5)
      mod = bias.Bias(bias_dims=[1, 3])
      out = mod(tf.ones([b, d1, d2, d3]))
      self.assertEqual(mod.b.shape, [d1, 1, d3])
      self.assertEqual(out.shape, [b, d1, d2, d3])
  
file_path: sonnet/sonnet/src/bias_test.py
imports: from sonnet.src import bias
  from sonnet.src import test_utils
  import tensorflow
label_desc: Use image node_id 4 for calling the BiasTest obj's underlying member method code with example usage: obj.test_bias_dims_custom() without return types