public async Task <IActionResult> ObtenerBancos()
        {
            try
            {
                var banco = await _bancoRepositorio.Obtener(string.Empty);

                return(Ok(banco));
            }
            catch (System.ArgumentNullException)
            {
                return(NotFound());
            }
            catch (Exception)
            {
                return(BadRequest());
            }
        }