text: """Support for Mythic Beasts Dynamic DNS service."""
  import logging
  from datetime import timedelta
  
  import voluptuous as vol
  
  import homeassistant.helpers.config_validation as cv
  from homeassistant.const import (
      CONF_DOMAIN,
      CONF_HOST,
      CONF_PASSWORD,
      CONF_SCAN_INTERVAL,
  )
  from homeassistant.helpers.aiohttp_client import async_get_clientsession
  from homeassistant.helpers.event import async_track_time_interval
  
  _LOGGER = logging.getLogger(__name__)
  
  DOMAIN = "mythicbeastsdns"
  
  DEFAULT_INTERVAL = timedelta(minutes=10)
  
  CONFIG_SCHEMA = vol.Schema(
      {
          DOMAIN: vol.Schema(
              {
                  vol.Required(CONF_DOMAIN): cv.string,
                  vol.Required(CONF_HOST): cv.string,
                  vol.Required(CONF_PASSWORD): cv.string,
                  vol.Optional(CONF_SCAN_INTERVAL, default=DEFAULT_INTERVAL): vol.All(
                      cv.time_period, cv.positive_timedelta
                  ),
              }
          )
      },
      extra=vol.ALLOW_EXTRA,
  )
  
  
  async def async_setup(hass, config):
      """Initialize the Mythic Beasts component."""
      import mbddns
  
      domain = config[DOMAIN][CONF_DOMAIN]
      password = config[DOMAIN][CONF_PASSWORD]
      host = config[DOMAIN][CONF_HOST]
      update_interval = config[DOMAIN][CONF_SCAN_INTERVAL]
  
      session = async_get_clientsession(hass)
  
      result = await mbddns.update(domain, password, host, session=session)
  
      if not result:
          return False
  
      async def update_domain_interval(now):
          """Update the DNS entry."""
          await mbddns.update(domain, password, host, session=session)
  
      async_track_time_interval(hass, update_domain_interval, update_interval)
  
      return True
  