我该如何为基于体积的candles编写脚本呢？

# 导入所需的库
import numpy as np

# 定义函数来计算基于体积的candles的平均价格
def calculate_average_price(candles):
    volumes = [candle['volume'] for candle in candles]  # 获取每个candle的交易量
    prices = [(candle['high'] + candle['low']) / 2 for candle in candles]  # 计算每个candle的平均价格
    weighted_prices = np.multiply(volumes, prices)  # 交易量加权平均价格
    average_price = np.sum(weighted_prices) / np.sum(volumes)  # 计算平均价格
    return average_price

# 示例数据
candles = [
    {'open': 10, 'high': 12, 'low': 8, 'close': 11, 'volume': 100},
    {'open': 11, 'high': 13, 'low': 9, 'close': 12, 'volume': 150},
    {'open': 12, 'high': 14, 'low': 10, 'close': 13, 'volume': 200}
]

# 调用函数计算平均价格
average_price = calculate_average_price(candles)
print("基于体积的candles的平均价格为:", average_price)