public class RoleService : IRoleService
    {
        private readonly IUnitOfWork _uow;
        private readonly DbSet<Role> _roles;
       
        public RoleService(IUnitOfWork uow)
        {
            _uow = uow;
            _roles = _uow.Set<Role>();
            
        }

public async Task<ServiceResponse> AddRoleAysnc(RoleDtoModel roleDtoModel)
        {

               #region Validation Or Logic

                var brokenRules = _validation.Reset()
                    .IsNullOrDefault(() => roleDtoModel.RoleName)
                    .Assert();
                if (brokenRules.Any())
                    return ServiceResponse.Failed(brokenRules: brokenRules);

                #endregion

               
                await _roles.AddAsync(role);
                await _uow.SaveChangesAsync();

                return ServiceResponse.Successful();
                     
        }
}