| air_flagbit_table | Entry in table of flag bits |
| air_hash_stats_st | Hash table statistics |
| air_hashv_t | An int or a string |
| air_name_map_st | Name/intval pair for air_hash_create_from_map |
| air_xml_cfg_attr_map_st | Map of required/possible attributes for a configuration element |
| air_xml_cfg_def_st | Configuration definition |
| air_xml_node_data_st | Data of a node or attribute |
| air_xml_node_st | Node of a tree |
| air_xml_tree_st | A tree |
| aur_xml_node_attr_st | Attribute of a node |