3 # Copyright 2018 Yuya Nishihara <yuya@tcha.org>

     3 # Copyright 2018 Yuya Nishihara <yuya@tcha.org>

     4 #

     4 #

     5 # This software may be used and distributed according to the terms of the

     5 # This software may be used and distributed according to the terms of the

     6 # GNU General Public License version 2 or any later version.

     6 # GNU General Public License version 2 or any later version.

     7 

     7 

     9 

     8 

    10 import collections

     9 import collections

    11 import gc

    10 import gc

    12 import threading

    11 import threading

    13 

    12