Demand Generator Spec
@Serializable
Serializable description of a customer-demand arrival process at a node.
Parameters
node
the NodeSpec.name where demand arrives
item Type Name
the ItemSpec.name demanded
inter Arrival
inter-arrival time distribution
name
optional generator name
transport Time
transport time on the node → generator edge; null means immediate
shipment Formation
per-edge formation toward this generator (requires the node to be formation-enabled)