def get_conn(self):
        """
        
        """
        if self.conn is None:
            params = self.get_connection(self.ftp_conn_id)
            pasv = params.extra_dejson.get("passive", True)
            self.conn = ftplib.FTP(params.host, params.login, params.password)
            self.conn.set_pasv(pasv)

        return self.conn