问如何从T的自定义实例(而不是通过DI)创建IOptions<T>

EN

var optionsInstance = new IdentityOptions();
// ... set properties on it as needed

IOptions<IdentityOptions> optionParameter = Options.Create(optionsInstance);

public static IOptions<TOptions> AsIOption<TOptions>(this TOptions optionInstance) where TOptions : class, new()
{
    return Microsoft.Extensions.Options.Options.Create(optionInstance);
}

public LCSignInManager(UserManager<Profile> userManager, IdentityDbContext db, IHttpContextAccessor contextAccessor, IUserClaimsPrincipalFactory<Profile> claimsFactory, IOptions<IdentityOptions> optionsAccessor = null) : base(userManager, contextAccessor, claimsFactory, optionsAccessor, new LoggerFactory().CreateLogger<LCSignInManager>(), (IAuthenticationSchemeProvider)new AuthenticationSchemeProvider(GetOption()).GetDefaultAuthenticateSchemeAsync().Result)
{
    _userManager = userManager;
    this.DbContext = db;
}

private static IOptions<AuthenticationOptions> GetOption()
{
    var settings = new AuthenticationOptions
        {

        };

    IOptions<AuthenticationOptions> result = Microsoft.Extensions.Options.Options.Create(settings);

    return result;
}