Imports
- github.com/gogo/protobuf/proto
- github.com/pkg/errors
- github.com/prysmaticlabs/prysm/proto/eth/v1alpha1
- github.com/sirupsen/logrus
- github.com/boltdb/bolt
- github.com/prysmaticlabs/prysm/shared/bytesutil
- github.com/prysmaticlabs/prysm/shared/params
- github.com/prysmaticlabs/go-ssz