public static function getDurationFromDefinition(array $definition)
{
if (!(is_array($definition[self::DEFINITION_ELEMENTS][0]) && array_key_exists(self::DEFINITION_DURATION, $definition[self::DEFINITION_ELEMENTS][0]) && is_array($definition[self::DEFINITION_ELEMENTS][0][self::DEFINITION_DURATION]))) {
return [];
}
return $definition[self::DEFINITION_ELEMENTS][0][self::DEFINITION_DURATION];
}