def can_delete_grade_entries(self):
<EOL>return True<EOL>
Tests if this user can delete grade entries.

        A return of true does not guarantee successful authorization. A
        return of false indicates that it is known deleting a
        ``GradeEntry`` will result in a ``PermissionDenied``. This is
        intended as a hint to an application that may opt not to offer
        delete operations to an unauthorized user.

        return: (boolean) - ``false`` if ``GradeEntry`` deletion is not
                authorized, ``true`` otherwise
        *compliance: mandatory -- This method must be implemented.*