code: def sanitize_ohlc(open_, high, low, close):
      if low > open_:
          low = open_
      if low > close:
          low = close
      if high < open_:
          high = open_
      if high < close:
          high = close
      return open_, high, low, close
  
label_desc: Use image node_id 1 for calling a global function with example usage: sanitize_ohlc(open_, high, low, close) and returns: open_,  high,  low,  close