// Converts untyped value into float. The bool return implies success
// - it returns false only if there is a conversion failure.
func (v Value) bytesToFloat() (float64, bool) {
	bytes, _ := v.ToBytes()
	i, err := strconv.ParseFloat(strings.TrimSpace(string(bytes)), 64)
	return i, err == nil
}

// Converts untyped value into bool. The second bool return implies
// success - it returns false in case of a conversion failure.

	case float64:
		return x, nil
	case int64:
		return float64(x), nil
	case string:
		f, err := strconv.ParseFloat(strings.TrimSpace(x), 64)
		if err != nil {
			return 0, errCastFailure("could not parse as float")
		}
		return f, nil
	case []byte:
		f, err := strconv.ParseFloat(strings.TrimSpace(string(x)), 64)
		if err != nil {
			return 0, errCastFailure("could not parse as float")
		}

	delay := env.Get(EnvDelayLegacy, "")
	if delay == "" {
		delay = env.Get(EnvDelay, kvs.GetWithDefault(Delay, DefaultKVS))
	}
	cfg.Delay, err = strconv.ParseFloat(delay, 64)
	if err != nil {
		return err
	}
	maxWait := env.Get(EnvMaxWaitLegacy, "")
	if maxWait == "" {
		maxWait = env.Get(EnvMaxWait, kvs.GetWithDefault(MaxWait, DefaultKVS))
	}