code: def test_invalid_data_format_raises_error(self):
      with self.assertRaises(ValueError):
          signal_conv.SignalConv1D(2, 1, data_format="NHWC")
  
imports: import os
  from absl.testing import parameterized
  import numpy
  import scipy.signal
  import tensorflow
  from tensorflow_compression.python.layers import initializers
  from tensorflow_compression.python.layers import parameters
  from tensorflow_compression.python.layers import signal_conv
label_desc: Use image node_id 1 for calling the SignalConvTest obj's underlying member method code with example usage: obj.test_invalid_data_format_raises_error() without return types