Python binance trading bot

Hello again i am one last step before the bot launch i must to define 2 parameters (gather_data and get states) but i cant because when i go to define i block the other commands please if some know to help me

the not defined commands are in 28 and 29 lines df = gather_data(symbols,48)
states = get_states(df,symbols)

symbols = ['BTC','ETH','LTC']
start_n_hours_ago = 48
balance_unit = 'USDT'

first = True

BUY_AMOUNT_USDT = 300

precision = {}
for symbol in symbols:
    precision[symbol] = client.get_symbol_info(f'{symbol}USDT')['quotePrecision']
from os import truncate

while True:
    if (datetime.now().second % 10 == 0) or first:
        if (datetime.now().minute == 0 and datetime.now().second == 10) or first:
            # refresh data
            first = False
            df = gather_data(symbols,48)
            states = get_states(df,symbols)
            print('Current state of the market:')
            print(states)
    try:        
        print('\n')        
        if balance_unit == 'USDT': # looking to buy
            for symbol in symbols:
                ask_price = float(client.get_orderbook_ticker(symbol = f'{symbol}USDT')['askPrice'])
                lower_band = df[f'{symbol}_lower_band'].iloc[-1]
                print(f'{symbol}: ask price {ask_price} | lower_band {lower_band}')
                if ask_price < lower_band and states[symbol] == 'inside': #buy signal
                   ##########################
                    buy_order = client.order_limit_buy(symbol=f'{symbol}USDT',
                                                      quantity=truncate(BUY_AMOUNT_USDT / ask_price, precision[symbol]),
                                                      price=ask_price)
                    start = datetime.now()
                    while True:
                        time.sleep(1)
                        buy_order = client.get_order(symbol=buy_order['symbol'], orderId=buy_order['orderId'])
                        
                        # resolve buy order
                        seconds_since_buy = (datetime.now() - start).seconds
                        print(seconds_since_buy)
                        if float(buy_order['executedQty']) == 0 and seconds_since_buy > 60*60:
                            # no fill 
                            client.cancel_order(symbol=buy_order['symbol'], orderId=buy_order['orderId'])
                            break
                        if float(buy_order['executedQty']) != 0 and float(buy_order['executedQty']) != float(buy_order['origQty']) and seconds_since_buy > 60*60:
                            #partial fill
                            client.cancel_order(symbol=buy_order['symbol'], orderId=buy_order['orderId'])
                            balance_unit = symbol
                            break
                        
                        if float(buy_order['executedQty']) == float(buy_order['origQty']):
                            # complety filled
                            balance_unit = symbol
                            break
                    
                    #########################
                    
                    balance_unit = symbol
                    break
        if balance_unit != 'USDT': # looking to sell
            bid_price = float(client.get_orderbook_ticker(symbol = f'{balance_unit}USDT') ['bidPrice'])
            upper_band = df[f'{balance_unit}_upper_band'].iloc[-1]
            if bid_price > upper_band and states[balance_unit] == 'inside': # sell signal
              #######################
                client.order_market_sell(symbol=buy_order['symbol'],
                                         quantity=truncate(float(buy_order['executedQty']), precision[buy_order['symbol'].replace('USDT','')]))
                print('sell')
                
              #######################  
                balance_unit = 'USDT'
                
                
        time.sleep(1) 
        
    except Client.BinanceAPIException as e:
        print (e.status_code)
        print (e.message)  

if someone know to tell me please
thanks in advance