code: def setUp(self):
      self._seed = 23489
      np.random.seed(self._seed)
      super().setUp()
  
imports: import itertools
  from absl.testing import parameterized
  from magenta.contrib import rnn
  import numpy
  import tensorflow.compat.v1
label_desc: Use image node_id 1 for calling the StackBidirectionalRNNTest obj's underlying member method code with example usage: obj.setUp() without return types