internal static IReadOnlyCollection <TEnum>?GetValues <TEnum>(
this OptionalMember <TEnum> instance,
MissingMemberBehavior missingMemberBehavior
) where TEnum : struct, Enum =>
instance.SelectMany(
value => missingMemberBehavior == MissingMemberBehavior.Error
? Parse <TEnum>(value.GetStringRequired())
: TryHardParse <TEnum>(value.GetStringRequired())
);
internal static TEnum GetValue <TEnum>(this OptionalMember <TEnum> instance)
where TEnum : struct, Enum =>
instance.Select(value => Parse <TEnum>(value.GetStringRequired()));
internal static string GetValueOrEmpty(this OptionalMember <string> instance) => instance.Select(json => json.GetString()) ?? "";
internal static bool GetValue(this OptionalMember <bool> instance) => instance.Select(json => json.GetBoolean());
internal static string?GetValueOrNull(this OptionalMember <string> instance) => instance.Select(json => json.GetString());
