update question

go-stdlib/main.go

@@ -13,9 +13,13 @@ type Transfer struct {
 	Receiver int    `json:"receiver"`
 }
 
-var accounts = map[int]int{
-	1: 1000,
-	2: 1000,
+type Account struct {
+	Amount int `json:"amount"`
+}
+
+var accounts = map[int]Account{
+	1: {Amount: 1000},
+	2: {Amount: 1000},
 }
 
 var transactions = []Transfer{}