We used a macro called unimplemented!(), which helps in letting the compiler ignore any unimplemented function and to compile our code. This works because the unimplemented macro returns something called a never type, denoted by !.
We used a macro called unimplemented!(), which helps in letting the compiler ignore any unimplemented function and to compile our code. This works because the unimplemented macro returns something called a never type, denoted by !.