 1 package buckpal.application.domain.model;
 2
 3 public class Account {
 4
 5   // ...
 6
 7   public boolean withdraw(
 8           Money money,
 9           AccountId targetAccountId) {
10     if (!mayWithdraw(money)) {
11       return false;
12     }
13     // ...
14   }
15 }
