code: def test_map_elements_binary() -> None:
      assert pl.DataFrame(
          {"bin": [b"\x11" * 12, b"\x22" * 12, b"\xaa" * 12]}
      ).select(pl.col("bin").map_elements(bytes.hex)).to_dict(
          as_series=False
      ) == {
          "bin": [
              "111111111111111111111111",
              "222222222222222222222222",
              "aaaaaaaaaaaaaaaaaaaaaaaa",
          ]
      }
  
imports: from __future__ import annotations
  import json
  from datetime import date, datetime, timedelta
  import numpy
  import pytest
  import polars
  from polars.exceptions import PolarsInefficientMapWarning
  from polars.testing import assert_frame_equal
label_desc: Use image node_id 15 for calling a global function with example usage: test_map_elements_binary() without return types