@utilities.arguments_not_none<EOL><INDENT>def match_any_grade_entry(self, match):<DEDENT>
raise errors.Unimplemented()<EOL>
Matches gradebooks that have any grade entry.

        arg:    match (boolean): ``true`` to match gradebooks with any
                grade entry, ``false`` to match gradebooks with no grade
                entry
        *compliance: mandatory -- This method must be implemented.*