疑问： 在def on_15min_bar的代码里，是不是应该写成(加一个not)：
if not self.am15.inited:
return

附完整的代码：
def on_5min_bar(self, bar: BarData) -> None:
""""""
self.cancel_all()

    self.am5.update_bar(bar)
    if not self.am5.inited or not self.am15.inited:
        return

    self.boll_up, self.boll_down = self.am.boll(self.boll_window, self.boll_dev)
    self.rsi_value = self.am5.rsi(self.rsi_window)
    boll_width = self.boll_up - self.boll_down

    # No position
    if self.pos == 0:
        self.intra_trade_high = bar.high_price
        self.intra_trade_low = bar.low_price
        self.long_stop = 0
        self.short_stop = 0

        if self.ma_trend > 0 and self.rsi_value >= self.rsi_long:
            self.buy(self.boll_up, self.fixed_size, stop=True)

        if self.ma_trend < 0 and self.rsi_value <= self.rsi_short:
            self.short(self.boll_down, self.fixed_size, stop=True)

    # Long position
    elif self.pos > 0:
        self.intra_trade_high = max(self.intra_trade_high, bar.high_price)
        self.long_stop = (self.intra_trade_high - self.trailing_long * boll_width)
        self.sell(self.long_stop, abs(self.pos), stop=True)

    # Short position
    else:
        self.intra_trade_low = min(self.intra_trade_low, bar.low_price)
        self.short_stop = (self.intra_trade_low + self.trailing_short * boll_width)
        self.cover(self.short_stop, abs(self.pos), stop=True)

    self.put_event()

def on_15min_bar(self, bar: BarData) -> None:
    """"""
    self.am15.update_bar(bar)
    if self.am15.inited:
        return

    self.fast_ma = self.am15.sma(self.fast_window)
    self.slow_ma = self.am15.sma(self.slow_window)

    if self.fast_ma > self.slow_ma:
        self.ma_trend = 1
    elif self.fast_ma < self.slow_ma:
        self.ma_trend = -1
    else:
        self.ma_trend = 0

    self.put_event()