def SerializeToString(self):
    raise NotImplementedError
Load and save ``PageColorScheme`` for every ``PageTheme``
dataset/ETHPy150Open AppScale/appscale/AppServer/google/net/proto2/python/public/message.py/Message.SerializeToString--crossover with--dataset/ETHPy150Open django-leonardo/django-leonardo/leonardo/module/web/management/commands/sync_page_themes.py/Command.collect