The amount of experience to give to each of the mapped progressions.
If true, the game's internal mechanisms to throttle progression should be applied.
The hash identifier of the DestinyProgressionMappingDefinition that contains the progressions for which experience should be applied.
Mapped to DestinyProgressionMappingDefinition in the manifest.
Inventory Items can reward progression when actions are performed on them. A common example of this in Destiny 1 was Bounties, which would reward Experience on your Character and the like when you completed the bounty.
Note that this maps to a DestinyProgressionMappingDefinition, and not a DestinyProgressionDefinition directly. This is apparently so that multiple progressions can be granted progression points/experience at the same time.