code: def is_period_dtype(arr_or_dtype) -> bool:
      """
      Check whether an array-like or dtype is of the Period dtype.
  
      Parameters
      ----------
      arr_or_dtype : array-like or dtype
          The array-like or dtype to check.
  
      Returns
      -------
      boolean
          Whether or not the array-like or dtype is of the Period dtype.
  
      Examples
      --------
      >>> from pandas.core.dtypes.common import is_period_dtype
      >>> is_period_dtype(object)
      False
      >>> is_period_dtype(pd.PeriodDtype(freq="D"))
      True
      >>> is_period_dtype([1, 2, 3])
      False
      >>> is_period_dtype(pd.Period("2017-01-01"))
      False
      >>> is_period_dtype(pd.PeriodIndex([], freq="Y"))
      True
      """
      warnings.warn(
          "is_period_dtype is deprecated and will be removed in a future version. "
          "Use `isinstance(dtype, pd.PeriodDtype)` instead",
          DeprecationWarning,
          stacklevel=2,
      )
      if isinstance(arr_or_dtype, ExtensionDtype):
          # GH#33400 fastpath for dtype object
          return arr_or_dtype.type is Period
  
      if arr_or_dtype is None:
          return False
      return PeriodDtype.is_dtype(arr_or_dtype)
  
imports: from __future__ import annotations
  from typing import TYPE_CHECKING, Any, Callable
  import warnings
  import numpy
  from pandas._libs import Interval, Period, algos, lib
  from pandas._libs.tslibs import conversion
  from pandas.util._exceptions import find_stack_level
  from pandas.core.dtypes.base import _registry
  from pandas.core.dtypes.dtypes import CategoricalDtype, DatetimeTZDtype, ExtensionDtype, IntervalDtype, PeriodDtype, SparseDtype
  from pandas.core.dtypes.generic import ABCIndex
  from pandas.core.dtypes.inference import is_array_like, is_bool, is_complex, is_dataclass, is_decimal, is_dict_like, is_file_like, is_float, is_hashable, is_integer, is_interval, is_iterator, is_list_like, is_named_tuple, is_nested_list_like, is_number, is_re, is_re_compilable, is_scalar, is_sequence
label_desc: Use image node_id 11 for calling a global function with example usage: is_period_dtype(arr_or_dtype) and returns: PeriodDtype, unknown, False