code: def test_qcut() -> None:
      s = pl.Series("a", [-2, -1, 0, 1, 2])
  
      result = s.qcut([0.25, 0.50])
  
      expected = pl.Series(
          "a",
          [
              "(-inf, -1]",
              "(-inf, -1]",
              "(-1, 0]",
              "(0, inf]",
              "(0, inf]",
          ],
          dtype=pl.Categorical,
      )
      assert_series_equal(result, expected, categorical_as_str=True)
  
file_path: polars/py-polars/tests/unit/operations/test_qcut.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 1 for calling a global function with example usage: test_qcut() without return types