How to use the loopback4-authentication.STRATEGY.LOCAL function in loopback4-authentication

private readonly getUserPermissions: UserPermissionsFn,
    @repository(AuthClientRepository)
    public authClientRepository: AuthClientRepository,
    @repository(UserRepository)
    public userRepo: UserRepository,
    @repository(UserTenantRepository)
    public userTenantRepo: UserTenantRepository,
    @repository(UserTenantPermissionRepository)
    public utPermsRepo: UserTenantPermissionRepository,
    @repository(RefreshTokenRepository)
    public refreshTokenRepo: RefreshTokenRepository,
  ) {}
  // sonarignore_end

  @authenticateClient(STRATEGY.CLIENT_PASSWORD)
  @authenticate(STRATEGY.LOCAL)
  @authorize(['*'])
  @post('/auth/login', {
    responses: {
      [STATUS_CODE.OK]: {
        description: 'Auth Code',
        content: {
          [CONTENT_TYPE.JSON]: Object,
        },
      },
    },
  })
  async login(
    @requestBody()
    req: LoginRequest,
  ): Promise<{
    code: string;