code: def test_parsers_iso8601_leading_space():
      # GH#25895 make sure isoparser doesn't overflow with long input
      date_str, expected = (
          "2013-1-1 5:30:00",
          datetime(2013, 1, 1, 5, 30),
      )
      actual = tslib._test_parse_iso8601(" " * 200 + date_str)
      assert actual == expected
  
file_path: pandas/pandas/tests/tslibs/test_parse_iso8601.py
imports: from datetime import datetime
  import pytest
  from pandas._libs import tslib
  from pandas import Timestamp
label_desc: Use image node_id 4 for calling a global function with example usage: test_parsers_iso8601_leading_space() without return types