What is default value of StreamConfigStorage in c# client if not specified

[YashasAnand]

If i create a jetstream stream without Storage parameter, what does it default to? does it use File or Memory?

var streamConfig = new StreamConfig(
    name: Settings.NatsSettings.NatsJsStreamName,
    subjects: mergedStreamFilters
)

{
    Discard = StreamConfigDiscard.Old,
    MaxBytes = 10 * 1L * 1024 * 1024 * 1024,
    Retention = StreamConfigRetention.Limits,
    MaxAge = TimeSpan.FromDays(7)
};

Below is the field im concerned about

//
// Summary:
//     The storage backend to use for the Stream.
[JsonPropertyName("storage")]
[JsonIgnore(Condition = JsonIgnoreCondition.Never)]
[Required(AllowEmptyStrings = true)]
public StreamConfigStorage Storage { get; set; }

public enum StreamConfigStorage
{
    File,
    Memory
}

Can anyone pls shed some light on this?

[YashasAnand]

pls ignore, on debugging ive found file to be default value , also as mentioned in https://docs.nats.io/nats-concepts/jetstream/streams#storagetype