GasRefunder | bzx-contracts

event

`GasRefund` `1bcea78f`

inputs	0	address	`payer`
	inputs	1	uint256	`gasUsed`
	inputs	2	uint256	`currentGasPrice`
	inputs	3	uint256	`refundAmount`
	inputs	4	bool	`refundSuccess`

function, constant

`throwOnGasRefundFail` `754efc98`