func (id ID) String() string {
	return hex.EncodeToString(id[:])
}
String returns the hex encoding of the ID.
package cacher
import (
	"encoding/hex"
	"encoding/json"
	"github.com/renproject/darknode/engine"
	"github.com/renproject/darknode/jsonrpc"
	"github.com/renproject/kv"
	"github.com/renproject/lightnode/compat/v1"
	"github.com/renproject/lightnode/db"
	"github.com/renproject/lightnode/http"
	"github.com/renproject/pack"
	"github.com/renproject/phi"
	"github.com/sirupsen/logrus"
	"golang.org/x/crypto/sha3"
)
type ID [32]byte