code: public function getApartment()
  	{
  		$types = ['Apt.', 'Apartment', 'Ste.', 'Suite', 'Box'];
  
  		// @codeCoverageIgnoreStart
  		if ($this->getBool(true, false)) {
  			$extra = $this->getLetter();
  		} else {
  			$extra = $this->getInteger(1, 9999);
  		}
  		// @codeCoverageIgnoreEnd
  
  		$type = $this->fromArray($types);
  		return $type . ' ' . $extra;
  	}
docs: Get an apartment number.
  
  @return string