def to_business(self):
        return CommandSent(
            Command(self.command) if self.command is not None else NullCommand(),
            _splitted_utc_datetime_to_timestamp(self.timestamp_before, self.timestamp_before_micro),
            Command(self.response) if self.response not in None else NullCommand(),
            _splitted_utc_datetime_to_timestamp(self.timestamp_after, self.timestamp_after_micro)
            )


##############################################################################
# USER PERMISSIONS
#
dataset/ETHPy150Open weblabdeusto/weblabdeusto/server/src/weblab/db/model.py/DbUserCommand.to_business/operator `is not` -> `not in`