Cant run the server due an args mismatch in UpdateBook (book_repo.go and schema.resolvers.go) Error message: cannot use &mutationResolver{…} (value of type mutationResolver) as type generated.MutationResolver in return statement: mutationResolver does not implement generated.MutationResolver (wrong type for UpdateBook method) have UpdateBook(ctx context.Context, id int, input model.BookInput) (string, error) want UpdateBook(ctx context.Context, id int) (string, error)