<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def exclude_reference_link(self, exclude):
 """Sets `sysparm_exclude_reference_link` to a bool value :param exclude: bool """

        if not isinstance(exclude, bool):
            raise InvalidUsage('exclude_reference_link must be of type bool')

        self._sysparms['sysparm_exclude_reference_link'] = exclude