当我尝试从python向 metatrader 5（Alpari经纪商）发送订单时，发生了“不支持的填充模式”错误。
谁能帮我解决这个问题？或者如何将SYMBOL_FILLING_MODE转换为ENUM_ORDER_TYPE_FILLING值？
先谢谢你了！
我试着测试下面的代码：

# Import the libraries
import MetaTrader5 as mt5
from datetime import datetime

# Create the bound between MT5 and Python
mt5.initialize()

# Place buy order

# Initialization value
symbol = "EURUSD"
lot = 0.01

# Choose the deviation
deviation = 10

# Find the filling mode of symbol
filling_type = mt5.symbol_info(symbol).filling_mode

# Create dictionnary request
request = {
    "action": mt5.TRADE_ACTION_DEAL,
    "symbol": symbol,
    "volume": lot,
    "type": mt5.ORDER_TYPE_SELL,
    "price": mt5.symbol_info_tick(symbol).bid,
    "deviation": deviation,
    "type_filling": filling_type,
    "type_time": mt5.ORDER_TIME_GTC
}

mt5.order_check(request)

结果如下：

OrderCheckResult(retcode=10030, balance=0.0, equity=0.0, profit=0.0,
margin=0.0, margin_free=0.0, margin_level=0.0, comment='Unsupported
filling mode', request=TradeRequest(action=1, magic=0, order=0,
symbol='EURUSD', volume=0.01, price=1.0793, stoplimit=0.0, sl=0.0,
tp=0.0, deviation=10, type=1, type_filling=1, type_time=0,
expiration=0, comment='', position=0, position_by=0))