using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace LiskovSubstitution
{
    public interface IWorkingWithFile
    {
        public string ReadFromFile(string filename);
        public void WriteToFile(string filename);
        public void DeleteFile(string filename);
        public void DownloadFile(string filename);
        public void CopyFile(string filename);
        public void GetDataFromFile(string filename);
        public void CheckFile(string filename);
        public void SaveToFile(string filename);
        public Guid CheckRole(Guid role);
        public Guid CheckUser(Guid user);
    }
}