def exportValue(self, vf, value):
        m = StrStrHashMap(value)
        keysAndValues = []
        for i in m.keys():
            keysAndValues.append(i)
            keysAndValues.append(m[i])
def flush(self):
        if self._bufferedCommands is None:
            return
        self._connection.sendline(str(self._bufferedCommands))
        self._bufferedCommands = None