code: public function get(string $alias)
      {
          $stat = $this->statCollection->filter(function($element) use($alias) {
              return $element->getAlias() === $alias;
          })->first();
  
          if (!$stat) {
              throw new InvalidAliasException('Stat alias "'.$alias.'" does not exist.');
          }
  
          $datum = $stat->get();
  
          return $datum;
      }
docs: Get a statistic datum
  
  @param string $alias
  @return \Ds\Component\Statistic\Model\Datum
  @throws \Ds\Component\Statistic\Exception\InvalidAliasException