code: def testScalar(self):
      self._test_valid(weights=5, values=_test_values((3, 2, 4)))
  
imports: import numpy
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors_impl
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import weights_broadcast_ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 3 for calling the AssertBroadcastableTest obj's underlying member method code with example usage: obj.testScalar() without return types