src/main/java/com/example/g8backend/service/IUserSecurityService.java - G8Backend - Gitiles

 package com.example.g8backend.service;

 public interface IUserSecurityService {
     boolean changePassword(Long userId, String oldPassword, String newPassword);
 }
	package com.example.g8backend.service;

	public interface IUserSecurityService {
	boolean changePassword(Long userId, String oldPassword, String newPassword);
	}