def __ensure_project(self, project_name):
        if project_name not in self.history:
            self.history[project_name] = {}
            self.history[project_name]['opened'] = []
            self.history[project_name]['closed'] = []
REST Conference Unmute helper
dataset/ETHPy150Open FichteFoll/FileHistory/file_history.py/FileHistory.__ensure_project--crossover with--dataset/ETHPy150Open plivo/plivohelper-python/plivohelper.py/REST.conference_unmute