@abc.abstractmethod<EOL><INDENT>def log_at_priority(self, priority_type, content, content_type):<DEDENT>
pass<EOL>
Logs an item.

        :param priority_type: the entry priority
        :type priority_type: ``osid.type.Type``
        :param content: the entry to log
        :type content: ``object``
        :param content_type: the type of this entry which must be one of the types returned by ``LoggingManager.getContentTypes()``
        :type content_type: ``osid.type.Type``
        :raise: ``InvalidArgument`` -- ``content`` is not of ``content_type``
        :raise: ``NullArgument`` -- ``content`` , ``content_type`` or ``priority_type`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure
        :raise: ``Unsupported`` -- ``LoggingManager.supportsContentType(contentType)`` is ``false`` or ``LoggingManager.supportsPriorityType(priorityType)`` is ``false``

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