code: def test_ones_like(self):
      x = tf1.placeholder_with_default(
          tf.ones([2], dtype=tf.float32), shape=None
      )
      self.assertEqual(
          dtype_util.convert_to_dtype(ps.ones_like(x)), tf.float32
      )
  
imports: from absl.testing import parameterized
  import numpy
  import tensorflow.compat.v1
  import tensorflow.compat.v2
  from tensorflow_probability.python.internal import dtype_util
  from tensorflow_probability.python.internal import prefer_static
  from tensorflow_probability.python.internal import test_util
label_desc: Use image node_id 1 for calling the DtypeTest obj's underlying member method code with example usage: obj.test_ones_like() without return types