def decrease_asset(self, asset: Asset, amount: FVal) -> None:
binance_symbol = asset.to_binance()
assert binance_symbol in self.balances_dict, 'Asset should exist in funds'
msg = 'We should have enough funds to decrease asset'
assert amount <= self.balances_dict[binance_symbol], msg
self.balances_dict[binance_symbol] -= amount
def increase_asset(self, asset: Asset, amount: FVal) -> None:
binance_symbol = asset.to_binance()
if binance_symbol not in self.balances_dict:
self.balances_dict[binance_symbol] = amount
else:
self.balances_dict[binance_symbol] += amount