if ($this->isPluginEnabled('wu')) {
$minutes_in_unit = $config->getIntValue('minutes_in_unit');
if ($minutes_in_unit) $this->minutes_in_unit = $minutes_in_unit;
if ($this->isPluginEnabled('wu')) {
$minutes_in_unit = $config->getIntValue('minutes_in_unit');
if ($minutes_in_unit) $this->minutes_in_unit = $minutes_in_unit;