text: """Adds config flow for GIOS."""
  import asyncio
  
  from aiohttp.client_exceptions import ClientConnectorError
  from async_timeout import timeout
  from gios import ApiError, Gios, InvalidSensorsData, NoStationError
  import voluptuous as vol
  
  from homeassistant import config_entries
  from homeassistant.const import CONF_NAME
  from homeassistant.helpers.aiohttp_client import async_get_clientsession
  
  from .const import CONF_STATION_ID, DEFAULT_NAME, DOMAIN
  
  DATA_SCHEMA = vol.Schema(
      {
          vol.Required(CONF_STATION_ID): int,
          vol.Optional(CONF_NAME, default=DEFAULT_NAME): str,
      }
  )
  
  
  class GiosFlowHandler(config_entries.ConfigFlow, domain=DOMAIN):
      """Config flow for GIOS."""
  
      VERSION = 1
      CONNECTION_CLASS = config_entries.CONN_CLASS_CLOUD_POLL
  
      async def async_step_user(self, user_input=None):
          """Handle a flow initialized by the user."""
          errors = {}
  
          if user_input is not None:
              try:
                  await self.async_set_unique_id(
                      user_input[CONF_STATION_ID], raise_on_progress=False
                  )
                  self._abort_if_unique_id_configured()
  
                  websession = async_get_clientsession(self.hass)
  
                  with timeout(30):
                      gios = Gios(user_input[CONF_STATION_ID], websession)
                      await gios.update()
  
                  return self.async_create_entry(
                      title=user_input[CONF_STATION_ID],
                      data=user_input,
                  )
              except (ApiError, ClientConnectorError, asyncio.TimeoutError):
                  errors["base"] = "cannot_connect"
              except NoStationError:
                  errors[CONF_STATION_ID] = "wrong_station_id"
              except InvalidSensorsData:
                  errors[CONF_STATION_ID] = "invalid_sensors_data"
  
          return self.async_show_form(
              step_id="user", data_schema=DATA_SCHEMA, errors=errors
          )
  