public MarketOrderModel(ProtoOAPosition position, SymbolModel symbol) => Update(position, symbol);
public PendingOrderModel(ProtoOAOrder order, SymbolModel symbol) => Update(order, symbol);
public MarketOrderModel(ProtoOAPosition position, SymbolModel symbol) => Update(position, symbol);
public PendingOrderModel(ProtoOAOrder order, SymbolModel symbol) => Update(order, symbol);