def update(self, user):
        user_file = self._get_user_file(user.name)
        self._write_json(user.__dict__, user_file)
Returns an Instance to handle a request or None if all are busy.
dataset/ETHPy150Open mblayman/markwiki/markwiki/storage/fs/user.py/FileUserStorage.update--crossover with--dataset/ETHPy150Open GoogleCloudPlatform/python-compat-runtime/appengine-compat/exported_appengine_sdk/google/appengine/tools/devappserver2/module.py/BasicScalingModule._choose_instance