Please complete the following in ML programming. I got all other questions answered but stuck on these. The book is Modern Programming Languages, a practical solution, 2nd edition.

Exercise 2 Define a function member of type ''a 'a listbool so that member (e, L) is true if and only if e is an element of the list L, 2. Some programmers claim that their ML programs are so clearly written as to be "s requiring no comments. Indeed, some programmers have made this claim for their code in just about every programming language ever invented. But no program is ever as self-documenting as it seems to its author self-documenting