def get_grade_entries_on_date(self, from_, to):
        """Gets a ``GradeEntryList`` effective during the entire given date range inclusive but not confined to the date range.

        arg:    from (osid.calendaring.DateTime): start of date range
        arg:    to (osid.calendaring.DateTime): end of date range
        return: (osid.grading.GradeEntryList) - the returned
                ``GradeEntry`` list
        raise:  InvalidArgument - ``from`` is greater than ``to``
        raise:  NullArgument - ``from or to`` is ``null``
        raise:  OperationFailed - unable to complete request
        raise:  PermissionDenied - authorization failure
        *compliance: mandatory -- This method must be implemented.*

        """
        # Implemented from template for
        # osid.relationship.RelationshipLookupSession.get_relationships_on_date
        grade_entry_list = []
        for grade_entry in self.get_grade_entries():
            if overlap(from_, to, grade_entry.start_date, grade_entry.end_date):
                grade_entry_list.append(grade_entry)
        return objects.GradeEntryList(grade_entry_list, runtime=self._runtime)
Gets a ``GradeEntryList`` effective during the entire given date range inclusive but not confined to the date range.

        arg:    from (osid.calendaring.DateTime): start of date range
        arg:    to (osid.calendaring.DateTime): end of date range
        return: (osid.grading.GradeEntryList) - the returned
                ``GradeEntry`` list
        raise:  InvalidArgument - ``from`` is greater than ``to``
        raise:  NullArgument - ``from or to`` is ``null``
        raise:  OperationFailed - unable to complete request
        raise:  PermissionDenied - authorization failure
        *compliance: mandatory -- This method must be implemented.*