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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_additions_status(self, level):
 """Retrieve the current status of a certain Guest Additions run level. in level of type :class:`AdditionsRunLevelType` Status level to check return active of type bool Flag whether the status level has been reached or not raises :class:`VBoxErrorNotSupported` Wrong status level specified. """

        if not isinstance(level, AdditionsRunLevelType):
            raise TypeError("level can only be an instance of type AdditionsRunLevelType")
        active = self._call("getAdditionsStatus",
                     in_p=[level])
        return active