MarketAccount

- refactoring

market_account.go

@@ -2,8 +2,10 @@ package sentio
 
 type MarketAccount interface {
 	GetId() string
+
 	GetName() string
 
-	Cash() (float64, error)
-	Equity() (float64, error)
+	GetCash() float64
+	
+	GetEquity() float64
 }