code: def test_freq_equal_pandas(freq):
      zb_freq = zb.freq(freq)
      pd_freq = to_offset(freq)
  
      assert zb_freq.to_pandas() == pd_freq
  
      freq = "7" + freq
      zb_freq = zb.freq(freq)
      pd_freq = to_offset(freq)
  
      assert zb_freq.to_pandas() == pd_freq
  
file_path: gluonts/test/zebras/test_period.py
imports: import pytest
  import numpy
  import pandas
  from pandas.tseries.frequencies import to_offset
  from gluonts.core import serde
  import gluonts.zebras
label_desc: Use image node_id 1 for calling a global function with example usage: test_freq_equal_pandas(freq) without return types