public async Task <HttpResponseMessage> ListarFiltrado(string filtro)
 {
     try
     {
         var response = _serviceVaraCompetencia.ListarFiltrado(filtro);
         return(await ResponseAsync(response, _serviceVaraCompetencia));
     }
     catch (Exception ex)
     {
         return(await ResponseExceptionAsync(ex));
     }
 }