monorepo/LCU.API.Collections.RepoApi-old/LCU.API.Collections.RepoApi/Services/IRepoLetterService.cs

using System.Collections.Generic;
using System.Threading.Tasks;
using LCU.Shared.Collections.RepoApiLib.Models;

namespace LCU.API.Collections.RepoApi.Services
{
    public interface IRepoLetterService
    {
        Task<IReadOnlyCollection<RepoLetter>> ListByAccountIdAsync(int accountId);
    }
}