Type Alias _ApplyDefaultOptions<Options, Defaults, SpecifiedOptions>

_ApplyDefaultOptions: If<
    IsAny<SpecifiedOptions>,
    Defaults,
    If<
        IsNever<SpecifiedOptions>,
        Defaults,
        Merge<
            Defaults,
            {
                [Key in keyof SpecifiedOptions as undefined extends Required<Options>[Key & keyof Options]
                    ? Key
                    : undefined extends SpecifiedOptions[Key] ? never : Key]: SpecifiedOptions[Key]
            },
        >,
    >,
>