pub fn envelope(
record_type: u8,
payload: Value,
subject: Option<Vec<u8>>,
ttl_ms: u64,
) -> Result<Record, RecordError>Expand description
An unsigned record of a domain type, 0x20 to 0xFF, with subject, living
ttl_ms, or 48 hours when 0. An empty subject would name a slot apart
from no subject, so it is refused.