AccessibleRelations and RelationSets
@SPI_RELATION_NULL:
@SPI_RELATION_LABEL_FOR:
@SPI_RELATION_LABELED_BY:
@SPI_RELATION_CONTROLLER_FOR:
@SPI_RELATION_CONTROLLED_BY:
@SPI_RELATION_MEMBER_OF:
@SPI_RELATION_NODE_CHILD_OF:
@SPI_RELATION_EXTENDED:
@SPI_RELATION_LAST_DEFINED:
@obj:
@Returns:
@obj:
@Returns:
@obj:
@Returns:
@obj:
@i:
@Returns:
@obj:
@Returns: