code: def test_base64_decode() -> None:
      df = pl.DataFrame({"data": [b"YXNk", b"cXdl"]})
  
      assert [b"asd", b"qwe"] == df["data"].bin.decode(
          "base64"
      ).to_list()
  
file_path: polars/py-polars/tests/unit/namespaces/test_binary.py
imports: import pytest
  import polars
  from polars.testing import assert_frame_equal
  from polars.type_aliases import TransferEncoding
label_desc: Use image node_id 6 for calling a global function with example usage: test_base64_decode() without return types