code: def test_window_and_cse_10152() -> None:
      q = pl.LazyFrame(
          {
              "a": [0.0],
              "b": [0.0],
          }
      )
  
      q = q.with_columns(
          a=pl.col("a").diff().over("a") / pl.col("a"),
          b=pl.col("b").diff().over("a") / pl.col("a"),
          c=pl.col("a").diff().over("a"),
      )
  
      assert q.collect().columns == ["a", "b", "c"]
  
imports: from __future__ import annotations
  import numpy
  import pytest
  import polars
  from polars.testing import assert_frame_equal, assert_series_equal
label_desc: Use image node_id 18 for calling a global function with example usage: test_window_and_cse_10152() without return types