from binance.spot import Spot
from binance.cm_futures import CMFutures

cm = CMFutures()

# Get klines
def klines(symbol, interval, limit=1000):
    lines = cm.klines(symbol,interval, limit=limit)
    return lines

# Get Symbols
def symbols():
    info = cm.exchange_info()

    symbols = []
    for s in info['symbols']:
        if s['symbol'].endswith('_PERP'):
            symbols.append(s['symbol'])
    
    return symbols