Imports
- github.com/codestates/WBA-BC-Project-02/contracts/multisig
- github.com/codestates/WBA-BC-Project-02/was/config
- github.com/ethereum/go-ethereum/accounts/abi/bind
- github.com/ethereum/go-ethereum/common
- github.com/ethereum/go-ethereum/core/types
- github.com/ethereum/go-ethereum/crypto
- github.com/ethereum/go-ethereum/ethclient
- golang.org/x/crypto/sha3