docstr: Tests fft_convolve() raises error for mismatched batch sizes.
docstr_tok: ["Tests","fft_convolve","(",")","raises","error","for","mismatched","batch","sizes","."]
code: def test_fft_convolve_checks_batch_size(self):
      """Tests fft_convolve() raises error for mismatched batch sizes."""
      # Create random signals to convolve with different batch sizes.
      impulse_response = tf.concat([self.audio, self.audio], axis=0)
  
      with self.assertRaises(ValueError):
          _ = core.fft_convolve(self.audio, impulse_response)
  
imports: from absl.testing import parameterized
  from ddsp import core
  import librosa
  import numpy
  from scipy import signal
  import tensorflow.compat.v2
label_desc: Use image node_id 4 for calling the FiniteImpulseResponseTest obj's underlying member method code with example usage: obj.test_fft_convolve_checks_batch_size() without return types