code: def test_to_offset_leading_zero(freqstr, expected):
      result = to_offset(freqstr)
      assert result.n == expected
  
file_path: pandas/pandas/tests/tslibs/test_to_offset.py
imports: import re
  import pytest
  from pandas._libs.tslibs import Timedelta, offsets, to_offset
label_desc: Use image node_id 7 for calling a global function with example usage: test_to_offset_leading_zero(freqstr, expected) without return types