Type Alias NarrowPartial<O, T>

NarrowPartial: DrainOuterGeneric<
    T extends object
        ? {
            [K in keyof O & string]: K extends keyof T
                ? T[K] extends NotNull
                    ? Exclude<O[K], null>
                    : T[K] extends O[K]
                        ? T[K]
                        : KyselyTypeError<
                            `$narrowType() call failed: passed type does not exist in '${K}'s type union`,
                        >
                : O[K]
        }
        : never,
>