core/homeassistant/components/prowl/strings.json

{
  "config": {
    "abort": {
      "already_configured": "API key is already configured"
    },
    "error": {
      "api_timeout": "[%key:common::config_flow::error::timeout_connect%]",
      "bad_api_response": "[%key:common::config_flow::error::unknown%]",
      "invalid_api_key": "[%key:common::config_flow::error::invalid_api_key%]"
    },
    "step": {
      "user": {
        "data": {
          "api_key": "[%key:common::config_flow::data::api_key%]",
          "name": "[%key:common::config_flow::data::name%]"
        },
        "description": "Enter the Prowl API key and its name."
      }
    }
  }
}