PrecedenceRule(mapping=None, *, ignore_unknown_fields=False, **kwargs)A precedence rule between two events (each event is the pickup or
the delivery of a shipment): the "second" event has to start at
least offset_duration after "first" has started.
Several precedences can refer to the same (or related) events, e.g., "pickup of B happens after delivery of A" and "pickup of C happens after pickup of B".
Furthermore, precedences only apply when both shipments are performed and are otherwise ignored.
Attributes
| Name | Description |
| first_index |
int
Shipment index of the "first" event. This field must be specified. This field is a member of `oneof`_ ``_first_index``. |
| first_is_delivery |
bool
Indicates if the "first" event is a delivery. |
| second_index |
int
Shipment index of the "second" event. This field must be specified. This field is a member of `oneof`_ ``_second_index``. |
| second_is_delivery |
bool
Indicates if the "second" event is a delivery. |
| offset_duration |
google.protobuf.duration_pb2.Duration
The offset between the "first" and "second" event. It can be negative. |