docstr: Creates some test specific attributes.
docstr_tok: ["Creates","some","test","specific","attributes","."]
code: def setUp(self):
      """Creates some test specific attributes."""
      super().setUp()
      self.reverb_class = effects.FilteredNoiseReverb
      self.audio = tf.zeros((3, 16000))
      self.construct_args = {
          "reverb_length": 100,
          "n_frames": 10,
          "n_filter_banks": 20,
      }
      self.call_args = {"magnitudes": tf.zeros((3, 10, 20))}
  
imports: from absl.testing import parameterized
  from ddsp import effects
  import tensorflow.compat.v2
label_desc: Use image node_id 1 for calling the FilteredNoiseReverbTest obj's underlying member method code with example usage: obj.setUp() without return types