Readonlycarrier_Extra information returned by the carrier
ReadonlydeliveryInformation about the delivery of the package
All fields should be null until a delivery attempt is made
Readonlyevent_A list of tracking events and updates
Readonlylast_The last location the package was known to be at
Readonlylast_The datetime of the most recent tracking event.
Value is an ISO datetime string.
To get this value in other representations,
see getLastUpdatedDatetime.
ReadonlynoticesHigh-level notices applied to the shipment
ReadonlyscheduleInformation about the schedule for making a delivery
Readonlyshipment_Information about the shipment as a whole
last_updated in different representations
Information about the shipping status and history of a package