Drop
stacks drop struct
struct Drop {
DropType dropType;
address payoutReceiver;
uint256 initialSupply;
uint256 supply;
uint256 allowance;
address currencyAddress;
uint256 startTime;
uint256 presaleDuration;
uint256 presaleCost;
bytes32 presaleMerkleRoot;
uint256 publicDuration;
uint256 publicCost;
int256 decayRate;
}