using SecureSharing.Business.Infrastructure; namespace SecureSharing.Models; public sealed class MessageModel { public int Id { get; set; } public string Text { get; set; } public Guid Code { get; set; } public PeriodOfValidity ChosenPeriod { get; set; } public List Files { get; init; } = new(); // public Dictionary AvailablePeriods { get; set; } }