src/TgCommands.php
public function chatCreateGroup($groupName, array $peers)
    {
        $groupName = $this->escapeStringArgument($groupName);
        $peerList  = $this->formatPeers($peers);

        return $this->exec('create_group_chat ' . $groupName . ' ' . $peerList);
    }
public function chatCreateGroup($groupName, array $peers)
    {
        $groupName = $this->escapeStringArgument($groupName);
        $peerList  = $this->formatPeers($peers);

        return $this->exec('create_group_chat ' . $groupName . ' ' . $peerList);
    }
Create a group chat with $peers

@param string $groupName The name of the group chat
@param array  $peers     All peers to be included in chat
@return bool|string