code: def prep_binary(arg1, arg2):
      # mask out values, this also makes a common index...
      X = arg1 + 0 * arg2
      Y = arg2 + 0 * arg1
  
      return X, Y
  
file_path: pandas/pandas/core/window/common.py
imports: from __future__ import annotations
  from collections import defaultdict
  from typing import cast
  import numpy
  from pandas.core.dtypes.generic import ABCDataFrame, ABCSeries
  from pandas.core.indexes.api import MultiIndex
label_desc: Use image node_id 3 for calling a global function with example usage: prep_binary(arg1, arg2) and returns: X,  Y