spring-boot/04-bank-jpa-rest/src/main/java/com/example/spring/bank/account/AccountManager.java


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package com.example.spring.bank.account;

import java.util.Optional;

public interface AccountManager {

	public Account create(Account account);
	
	public Optional<Account> findByAccountNumber(Long accountNumber);
	public Iterable<Account> findAll();
	
	// Other methods
}