hass-core/homeassistant/components/epson/strings.json

{
  "config": {
    "step": {
      "user": {
        "data": {
          "host": "[%key:common::config_flow::data::host%]",
          "name": "[%key:common::config_flow::data::name%]"
        }
      }
    },
    "error": {
      "cannot_connect": "[%key:common::config_flow::error::cannot_connect%]",
      "powered_off": "Is projector turned on? You need to turn on projector for initial configuration."
    }
  }
}