Function sample_value 

pub fn sample_value(ty: &Type, name: &str) -> Value

A deterministic, type-valid sample value (used by orbit simulate for tasks without a mock). name is the field the value is for.

Type	Sample
String	"<name>-sample"
Int	1
Float	1.0
Bool	true
Bytes	"c2FtcGxl" (base64 of sample)
Duration	1000 (one second)
Timestamp	"2026-01-01T00:00:00Z"
UUID	"00000000-0000-4000-8000-000000000001"
JSON	{}
List<T>	one sample element
Map<String, T>	{ "key": <sample T> }
T?	null
record	every field: its default, else a sample