code: def test_lhs_broadcast_raises(self):
      source = jnp.ones(shape=(1, 2), dtype=jnp.float32)
      target = jnp.ones(shape=(1, 3, 1, 1), dtype=jnp.float32)
      with self.assertRaisesRegex(ValueError, "source shape"):
          base.lhs_broadcast(source, target)
  
file_path: rlax/rlax/_src/base_test.py
imports: from absl.testing import absltest
  from absl.testing import parameterized
  import jax
  import jax.numpy
  import numpy
  from rlax._src import base
label_desc: Use image node_id 2 for calling the BroadcastTest obj's underlying member method code with example usage: obj.test_lhs_broadcast_raises() without return types