public function getStreams()
    {
        $streams = [];
        foreach ($this->messages as $message) {
            $streams[] = $message->getResource();
        }
        return $streams;
    }
public function getStreams()
    {
        $streams = [];
        foreach ($this->messages as $message) {
            $streams[] = $message->getResource();
        }
        return $streams;
    }
public function getStreams ( ) { $ streams = [ ] ; foreach ( $ this -> messages as $ message ) { $ streams [ ] = $ message -> getResource ( ) ; } return $ streams ; }
Get all streams belonging to underlying messages.

@return array
Get all streams belonging to underlying messages .