lib/SteamCondenser/Community/SteamGroup.php
public function getMembers() {
        if(sizeof($this->members) != $this->memberCount) {
            $this->fetch();
        }

        return $this->members;
    }
public function getMembers() {
        if(sizeof($this->members) != $this->memberCount) {
            $this->fetch();
        }

        return $this->members;
    }
Returns the members of this group

If the members haven't been fetched yet, this is done now.

@return array The Steam ID's of the members of this group
@see fetch()