Get tracking information and items for a specific package using an encoded package ID
Basic authentication header of the form Basic <encoded-value>, where <encoded-value> is the base64-encoded string username:password.
The encoded package ID combining return_order_id and spot_order_key
"550e8400e29b41d4a716446655440000_02-010005"
Tracking information for the package
The encoded package ID that was looked up
The decoded return order UUID
The most recent tracking status for this package
Array of tracking updates in chronological order
Total number of tracking updates
Array of items in this package