@abc.abstractmethod<EOL><INDENT>def get_logs_by_parent_genus_type(self, log_genus_type):<DEDENT>
return<EOL>
Gets a ``LogList`` corresponding to the given log genus ``Type`` and include any additional logs with genus types derived from the specified ``Type``.

        In plenary mode, the returned list contains all known logs or an
        error results. Otherwise, the returned list may contain only
        those logs that are accessible through this session.

        :param log_genus_type: a log genus type
        :type log_genus_type: ``osid.type.Type``
        :return: the returned ``Log list``
        :rtype: ``osid.logging.LogList``
        :raise: ``NullArgument`` -- ``log_genus_type`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure

        *compliance: mandatory -- This method must be implemented.*