1 files changed, 6 insertions, 3 deletions
diff --git a/auction.go b/auction.go
index 32e9758..4cdbe82 100644
--- a/auction.go
+++ b/auction.go
@@ -73,10 +73,12 @@ func (d *Description) validate() error {
 	return nil
 }
 
+type Message []byte
+
 type Auction interface {
 	Start() error
 	Cancel() error
-	Message(msg []byte) error
+	Message(msg Message) error
 }
 
 type Result struct {
@@ -113,10 +115,11 @@ func (a *auction) Cancel() error {
 	return errors.New("Cancel not implemented")
 }
 
-// Message is called by the Bidder or Visitor
+
+// Message is called by the Bidder or Observer
 // whenever a message came in for the auction via the dashboard
 // or other means of communication.
-func (a *auction) Message(msg []byte) error {
+func (a *auction) Message(msg Message) error {
 	return fmt.Errorf("Auction.Received not implemented")
 }