Type Alias SetOptional<BaseType, Keys>

SetOptional: (
    BaseType extends (...arguments_: never) => any
        ? (...arguments_: Parameters<BaseType>) => ReturnType<BaseType>
        : unknown
) & _SetOptional<BaseType, Keys>

Create a type that makes the given keys optional, while keeping the remaining keys as is.

Copied from the SetOptional type in the type-fest package so that this package's public types do not depend on type-fest (see the note in type-checks.ts).