uint256 indexed projectId,
uint256 indexed domain,
uint256 indexed group,
projectIdis the ID of the project to which the split belongs.
domainis the namespace that differentiates different split groups for the projectId.
groupis the property that joins multiple splits into one full group.
JBSplitto which the distribution was made.
amountis the total token amount that was distributed to the split.
calleris the address that issued the transaction within which the event was emitted.