@utilities.arguments_not_none<EOL><INDENT>def match_any_grading_agent(self, match):<DEDENT>
raise errors.Unimplemented()<EOL>
Matches grade entries with any grading agent.

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