code: def is_period_arraylike(arr):
      
  
      if isinstance(arr, (ABCPeriodIndex, ABCPeriodArray)):
          return True
      elif isinstance(arr, (np.ndarray, ABCSeries)):
          return is_period_dtype(arr.dtype)
      return getattr(arr, 'inferred_type', None) == 'period'
docs: Check whether an array-like is a periodical array-like or PeriodIndex.
  
      Parameters
      ----------
      arr : array-like
          The array-like to check.
  
      Returns
      -------
      boolean
          Whether or not the array-like is a periodical array-like or
          PeriodIndex instance.
  
      Examples
      --------
      >>> is_period_arraylike([1, 2, 3])
      False
      >>> is_period_arraylike(pd.Index([1, 2, 3]))
      False
      >>> is_period_arraylike(pd.PeriodIndex(["2017-01-01"], freq="D"))
      True