using System.Collections.Generic;

using System.Threading.Tasks;

using System;

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

    }

}

​

public interface ITradeLogDataService

{

       Task<IEnumerable<string>> GetDeepDiveSettingByLogFolderID(int logFolderID);

        Task<IEnumerable<string>> GetFilterFileAndRelatedFiles(string searchString);

​

}

​

public class TradeLogDataService : ITradeLogDataService

    {        

​

        public async Task<IEnumerable<string>> GetDeepDiveSettingByLogFolderID(int logFolderID)

        {

            return null;

        }

        public async Task<IEnumerable<string>> GetFilterFileAndRelatedFiles(string searchString)

        {

            return null;

        }

 }