def can_assign_relationships_to_family(self, family_id=None):
pass<EOL>
Tests if this user can alter relationship/family mappings.

        A return of true does not guarantee successful authorization. A
        return of false indicates that it is known mapping methods in
        this session will result in a ``PermissionDenied``. This is
        intended as a hint to an application that may opt not to offer
        assignment operations to unauthorized users.

        arg:    family_id (osid.id.Id): the ``Id`` of the ``Family``
        return: (boolean) - ``false`` if mapping is not authorized,
                ``true`` otherwise
        raise:  NullArgument - ``family_id`` is ``null``
        *compliance: mandatory -- This method must be implemented.*