code: def _realign_dfs():
      idx_len = 0
      idx = None
  
      for df in shared._DFS.values():
          if len(df) > idx_len:
              idx_len = len(df)
              idx = df.index
  
      for key in shared._DFS.keys():
          try:
              shared._DFS[key] = _pd.DataFrame(
                  index=idx, data=shared._DFS[key]
              ).drop_duplicates()
          except Exception:
              shared._DFS[key] = _pd.concat(
                  [utils.empty_df(idx), shared._DFS[key].dropna()],
                  axis=0,
                  sort=True,
              )
  
          # remove duplicate index
          shared._DFS[key] = shared._DFS[key].loc[
              ~shared._DFS[key].index.duplicated(keep="last")
          ]
  
file_path: yfinance/yfinance/multi.py
imports: from __future__ import print_function
  import logging
  import time
  import traceback
  import multitasking
  import pandas
  from .None import Ticker, utils
  from .data import YfData
  from .None import shared
label_desc: Use image node_id 2 for calling a global function with example usage: _realign_dfs() without return types