search the BNBUSDT chart for any maximum and minimum to determine the maximum and minimum of a Japanese candle that is in the extreme, and plot Fibonacci levels from 0 to 1 on the extreme candle, where 0 should be at the extreme.

def find_extremes(dataframe):
  high = dataframe['high'].max()
  low = dataframe['low'].min()
  extreme_candle = dataframe[dataframe['high'] == high]
  extreme_candle = extreme_candle[extreme_candle['low'] == low]
  if len(extreme_candle) != 1:
    raise Exception('More than one candle is extreme')
  extreme_price = extreme_candle['close'].values[0]
  fibs = [0.0, 0.382, 0.5, 0.618, 1.0]
  fib_prices = [extreme_price * (1 - x) + x * low for x in fibs]
  return fib_prices