Jacek Witkowski

Simplified the calculation of total portfolio value in Portfolio

1

The value of ``self.equity`` is incremented by the position's P&L. In my opinion there is no need to calculate unrealised P&L once again, since there is already a field for...

Return type for the __init__ method (None)

3

When one tries to write a type annotation for the `__init__` method, the container will try to resolve this type (which is ``None``) and this will cause an error.