Should make create Map to be unsafe?

[quininer]

The contents of mmap may be changed externally and violate Rust's mutability assumptions.

see danburkert/memmap-rs#25 and https://users.rust-lang.org/t/how-unsafe-is-mmap/19635

[Polish-Civil]

Well what if someone writes to process memory and changing one of your struct's data? I think it can only be mutated by other process which you manage? I don't think its that unsafe