实验性
An interface that is passed into @minecraft/Server.EntityItemPickupAfterEventSignal.subscribe and @minecraft/Server.EntityItemPickupBeforeEventSignal.subscribe that filters out which events are passed to the provided callback.
可选
If this value is set, this event will only fire for entities that match.
If this value is set, this event will only fire if an item in the event matches.
An interface that is passed into @minecraft/Server.EntityItemPickupAfterEventSignal.subscribe and @minecraft/Server.EntityItemPickupBeforeEventSignal.subscribe that filters out which events are passed to the provided callback.