code: def test_select_projection() -> None:
      df = pl.DataFrame(
          {
              "a": [1, 2, 3],
              "b": [True, False, True],
              "c": ["a", "b", "c"],
          }
      )
      expected = pl.DataFrame(
          {"b": [True, False, True], "c": ["a", "b", "c"]}
      )
      f = io.BytesIO()
      df.write_parquet(f)
      f.seek(0)
  
      read_df = pl.read_parquet(f, columns=[1, 2], use_pyarrow=False)
      assert_frame_equal(expected, read_df)
  
imports: from __future__ import annotations
  import io
  from datetime import datetime, time, timezone
  from decimal import Decimal
  from typing import TYPE_CHECKING
  import numpy
  import pandas
  import pyarrow
  import pyarrow.dataset
  import pyarrow.parquet
  import pytest
  import polars
  from polars.testing import assert_frame_equal, assert_series_equal
label_desc: Use image node_id 9 for calling a global function with example usage: test_select_projection() without return types