Interface StackExtendOptions

Random integer to prevent re-use of signer signature, required for >= PoX-4

number of cycles to extend by

Maximum amount of STX that can be locked in this transaction, required for >= PoX-4

the reward Bitcoin address

private key to sign transaction

hex-encoded signer key (buff 33), required for >= PoX-4

hex-encoded signature (buff 65), required for >= PoX-4