@utilities.arguments_not_none<EOL><INDENT>def log_at_priority(self, priority_type, content, content_type):<DEDENT>
raise errors.Unimplemented()<EOL>
Logs an item.

        arg:    priority_type (osid.type.Type): the entry priority
        arg:    content (object): the entry to log
        arg:    content_type (osid.type.Type): the type of this entry
                which must be one of the types returned by
                ``LoggingManager.getContentTypes()``
        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.*