declare type A = {
    _id: string;
};
declare type B = A & {
    one: string;
    two: string;
};
declare type C = Omit<B, "_id">;
declare const valueWithoutId: C;
declare const valueWithId: B;
declare function thisBreaks_butWhy<T extends A, U = Omit<T, "_id">>(_valueWithoutId: U): void;
declare function thisBreaksTOO_butWhy<T extends A>(_valueWithoutId: Omit<T, "_id">): void;