code: def build_input(self, x):
      if isinstance(x, int):
          return x
      x = tf.convert_to_tensor(x)
      return tf1.placeholder_with_default(x, shape=x.shape)
  
imports: from absl.testing import parameterized
  import numpy
  import tensorflow.compat.v1
  import tensorflow.compat.v2
  from tensorflow_probability.python.bijectors import split
  from tensorflow_probability.python.internal import tensorshape_util
  from tensorflow_probability.python.internal import test_util
label_desc: Use image node_id 1 for calling the SplitBijectorTestDynamic obj's underlying member method code with example usage: obj.build_input(x) and returns: tf1, x