@utilities.arguments_not_none<EOL><INDENT>def match_any_descendant_family(self, match):<DEDENT>
raise errors.Unimplemented()<EOL>
Matches families with any decendant.

        arg:    match (boolean): ``true`` to match families with any
                decendants, ``false`` to match leaf families
        *compliance: mandatory -- This method must be implemented.*