public function getLeagueById( string $league_id )
	{
		$resultPromise = $this->setEndpoint("/lol/league/" . self::RESOURCE_LEAGUE_VERSION . "/leagues/{$league_id}")
			->setResource(self::RESOURCE_LEAGUE, "/leagues/%s")
			->makeCall();

		return $this->resolveOrEnqueuePromise($resultPromise, function(array $result) {
			return new Objects\LeagueListDto($result, $this);
		});
	}