code: def _(dtype):
      return pd.array([pd.Timestamp(1), pd.NaT], dtype=dtype)
  
file_path: dask/dask/dataframe/_dtypes.py
imports: from __future__ import annotations
  from datetime import date, time
  from decimal import Decimal
  import pandas
  from dask.dataframe._compat import PANDAS_GE_150
  from dask.dataframe.extensions import make_array_nonempty, make_scalar
label_desc: Use image node_id 1 for calling a global function with example usage: _(dtype) and returns: pd