core/homeassistant/components/aws/config_flow.py

"""Config flow for AWS component."""

from collections.abc import Mapping
from typing import Any

from homeassistant.config_entries import ConfigFlow, ConfigFlowResult

from .const import DOMAIN


class AWSFlowHandler(ConfigFlow, domain=DOMAIN):
    """Handle a config flow."""

    VERSION = 1

    async def async_step_import(
        self, user_input: Mapping[str, Any]
    ) -> ConfigFlowResult:
        """Import a config entry."""
        if self._async_current_entries():
            return self.async_abort(reason="single_instance_allowed")

        return self.async_create_entry(title="configuration.yaml", data=user_input)