Different ROI, trailing and stoploss for each pairs

WARNING!!!!

The snippet below will introduce backtest traps. Read this and this for more details. To reduce the impact of the traps, either

• Use timeframe-detail, or
• Re-calculate current_profit to use last candle’s close rate

pairs_data = {
    "MTL/USDT:USDT": {
        "minimal_roi": {
            0: 0.257,
            38: 0.092,
            65: 0.024,
            162: 0
        },
        "stoploss": -0.1,
        "trailing_stop_positive": 0.01,
        "trailing_stop_positive_offset": 0.06,
    },
    "ANT/USDT:USDT": {
        "minimal_roi": {
            0: 0.378,
            94: 0.146,
            252: 0.051,
            417: 0
        },
        "stoploss": -0.25,
        "trailing_stop_positive": 0.01,
        "trailing_stop_positive_offset": 0.079,
    },
    "XEM/USDT:USDT": {
        "minimal_roi": {
            0: 0.055,
            18: 0.043,
            69: 0.033,
            80: 0
        },
        "stoploss": -0.5,
        "trailing_stop_positive": 0.012,
        "trailing_stop_positive_offset": 0.014,
    },
}

# Disable global roi
minimal_roi = {
    "0": 1000
}

# Disable stoploss
stoploss = -0.99

def custom_exit(self, pair: str, trade: Trade, current_time: datetime, current_rate: float, current_profit: float, **kwargs) -> Optional[Union[str, bool]]:

    # reverse roi table, to check from biggest minute first
    reverse_roi = dict(reversed(list(self.pairs_data[pair]['minimal_roi'])))

    for min, profit in reverse_roi.items():
        if (current_time - timedelta(minutes=int(min)) < trade.open_date_utc):
            # this minute hasn't been reached. Move to next minute check
            continue
        else:
            if (current_profit >= profit):
                return "roi"
            break

    if (current_profit <= self.pairs_data[pair]['stoploss']):
        return "stoploss"

def custom_stoploss(self, pair: str, trade: Trade, current_time: datetime, current_rate: float, current_profit: float, **kwargs) -> float:
    
    sl_new = 1

    if (current_profit >= self.pairs_data[pair]['trailing_stop_positive_offset']):
        sl_new = self.pairs_data[pair]['trailing_stop_positive']

    return sl_new