code: def test_full_month_name() -> None:
      s = pl.Series(["2022-December-01"]).str.to_datetime("%Y-%B-%d")
      assert s[0] == datetime(2022, 12, 1)
  
imports: from __future__ import annotations
  import contextlib
  from datetime import date, datetime, time, timedelta, timezone
  from typing import TYPE_CHECKING
  import pytest
  import polars
  from polars.exceptions import ComputeError, TimeZoneAwareConstructorWarning
  from polars.testing import assert_series_equal
label_desc: Use image node_id 20 for calling a global function with example usage: test_full_month_name() without return types