NewTransaction returns transaction.

NewMerkleTree returns merkle tree of given byte of json eg: ["0x", "0x1", ["0x2bbfda354b607b8cdd7d52c29344c76c17d76bb7d9187874a994144b55eaf931","0x0000000000000000000000000000000000000000000000000000000000000001"]].

NewTransaction returns transaction.

DeviceTicket struct for connection and transmission.

Response struct Item represents key/value of response.

MerkleTree struct for merkle tree.

MerkleTreeLeave struct for leave of merkle tree.

MerkleTreeNode struct for node of merkle tree.

Message is the struct for each in/out rpc message TODO: implement io.Read/io.Write interface?.

Transaction struct Because to should be nil when send contract deployment transaction, we use pointer of to.

Address represents an Ethereum address.