code: def is_offsetlike(arr_or_obj):
      
      if isinstance(arr_or_obj, ABCDateOffset):
          return True
      elif (is_list_like(arr_or_obj) and len(arr_or_obj) and
            is_object_dtype(arr_or_obj)):
          return all(isinstance(x, ABCDateOffset) for x in arr_or_obj)
      return False
docs: Check if obj or all elements of list-like is DateOffset
  
      Parameters
      ----------
      arr_or_obj : object
  
      Returns
      -------
      boolean
          Whether the object is a DateOffset or listlike of DatetOffsets
  
      Examples
      --------
      >>> is_offsetlike(pd.DateOffset(days=1))
      True
      >>> is_offsetlike('offset')
      False
      >>> is_offsetlike([pd.offsets.Minute(4), pd.offsets.MonthEnd()])
      True
      >>> is_offsetlike(np.array([pd.DateOffset(months=3), pd.Timestamp.now()]))
      False