code: def testBiasZeroInitialized(self):
      mod = linear.Linear(1)
      mod(tf.constant([[1.0]]))
      self.assertEqual(mod.b.numpy(), [0.0])
  
imports: from absl.testing import parameterized
  import numpy
  from sonnet.src import linear
  from sonnet.src import test_utils
  import tensorflow
label_desc: Use image node_id 7 for calling the LinearTest obj's underlying member method code with example usage: obj.testBiasZeroInitialized() without return types