def validate_zipcode(province_id, zipcode)
      zipcode = zipcode.to_i
      url = "/provincia/#{province_id}/validar-codigo-postal"
      query = "codigo_postal=#{zipcode}"
      get_response(url, query)
    end
def validate_zipcode(province_id, zipcode)
      zipcode = zipcode.to_i
      url = "/provincia/#{province_id}/validar-codigo-postal"
      query = "codigo_postal=#{zipcode}"
      get_response(url, query)
    end
get(resource)
 GET /provincia/ID/validar-codigo-postal
 returns param 'valido' true or false