code: def test_pad_end_unicode() -> None:
      lf = pl.LazyFrame({"a": ["Café", "345", "東京", None]})
  
      result = lf.select(pl.col("a").str.pad_end(6, "日"))
  
      expected = pl.LazyFrame(
          {"a": ["Café日日", "345日日日", "東京日日日日", None]}
      )
      assert_frame_equal(result, expected)
  
file_path: polars/py-polars/tests/unit/namespaces/string/test_pad.py
imports: from __future__ import annotations
  import pytest
  import polars
  from polars.testing import assert_frame_equal, assert_series_equal
label_desc: Use image node_id 6 for calling a global function with example usage: test_pad_end_unicode() without return types