This way people can use `const` with a `std.EnumMap` and be able to `getPtrAssertContains(...)` like the would with a mutable `var` instance. Aligns with the existing `getPtr(...)`/`getPtrConst(...)` methods.
This way people can use `const` with a `std.EnumMap` and be able to `getPtrAssertContains(...)` like the would with a mutable `var` instance. Aligns with the existing `getPtr(...)`/`getPtrConst(...)` methods.