code: def _align_indices(self, other):
      if self.index == other.index:
          return other
      elif set(self.index) == set(other.index):
          return other.reindex(self.index)
      else:
          raise ValueError(
              f"The indexes of self and other do not meet the requirements of the four arithmetic operations"
          )
  
imports: from __future__ import annotations
  from typing import Dict, Tuple, Union, Callable, List
  import bisect
  import numpy
  import pandas
label_desc: Use image node_id 2 for calling the SingleData obj's underlying member method code with example usage: obj._align_indices(other) and returns: other, other