code: def test_freq_to_seconds(self, freq, expected_seconds):
      self.assertAllEqual(
          expected_seconds, seasonality_util.freq_to_seconds(freq)
      )
  
file_path: probability/tensorflow_probability/python/sts/internal/seasonality_util_test.py
imports: from absl.testing import parameterized
  import numpy
  import pandas
  from tensorflow_probability.python.internal import test_util
  from tensorflow_probability.python.sts.internal import seasonality_util
label_desc: Use image node_id 5 for calling the SeasonalityUtilsTest obj's underlying member method code with example usage: obj.test_freq_to_seconds(freq, expected_seconds) without return types