Seemingly broken code in leechcore

[atcuno]

I don't have a leechcore setup, but pyright flagged this code:

https://github.com/volatilityfoundation/volatility3/blob/develop/volatility3/framework/layers/leechcore.py#L130

__size is optional but not checked before being used, which would seemingly backtrace right away.

There is also a call here without a size, which seems that code would break too and it should be sending a size?

https://github.com/volatilityfoundation/volatility3/blob/develop/volatility3/framework/layers/leechcore.py#L147

@ikelos assigning this to you are I saw you mostly in the history of the file.

[ikelos]

Ugh, yeah, I was trying to override RawIOBase and using the signature I found elsewhere. I think rather than being optional it defaults to -1 or something? It's in the python core. I don't know how the core handles it when a size isn't provided. I guess it knows the total length and reads up until that or until a \n character?

[ikelos]

I think just removing the optional should sort this. I think...