Imports github.com/hyperledger/fabric-chaincode-go/pkg/cid github.com/hyperledger/fabric-chaincode-go/shim github.com/hyperledger/fabric-protos-go/msp github.com/pkg/errors Standard library imports crypto/x509 crypto/x509/pkix encoding/asn1 encoding/base64 encoding/hex encoding/json encoding/pem fmt