/**
*
* @param Request\Request $request
* @return Statement
*/
public function asyncRequest(Request\Request $request)
{
if ($this->_node === null) {
$this->connect();
}
$streamId = $this->_getNewStreamId();
$request->setStream($streamId);
$this->_node->write($request->__toString());
return $this->_statements[$streamId] = new Statement($this, $streamId);
}