830     struct compute_compatible_component_variant<  struct
834         typedef iterator_range<utree::iterator> compatible_type;
836         static bool is_compatible(int d)  in is_compatible()
843     struct compute_compatible_component_variant<  struct
847         typedef iterator_range<utree::const_iterator> compatible_type;
849         static bool is_compatible(int d)  in is_compatible()
856     struct compute_compatible_component_variant<utree, utree::invalid_type>  struct
859         typedef utree::invalid_type compatible_type;
861         static bool is_compatible(int d)  in is_compatible()
868     struct compute_compatible_component_variant<utree, utree::nil_type>  struct
871         typedef utree::nil_type compatible_type;
873         static bool is_compatible(int d)  in is_compatible()
880     struct compute_compatible_component_variant<utree, bool>  struct
883         typedef bool compatible_type;
885         static bool is_compatible(int d)  in is_compatible()
892     struct compute_compatible_component_variant<utree, int>  struct
895         typedef int compatible_type;
897         static bool is_compatible(int d)  in is_compatible()
904     struct compute_compatible_component_variant<utree, double>  struct
907         typedef double compatible_type;
909         static bool is_compatible(int d)  in is_compatible()
916     struct compute_compatible_component_variant<  struct
920         typedef utf8_string_range_type compatible_type;
922         static bool is_compatible(int d)  in is_compatible()
929     struct compute_compatible_component_variant<  struct
933         typedef utf8_string_type compatible_type;
935         static bool is_compatible(int d)  in is_compatible()
942     struct compute_compatible_component_variant<  struct
946         typedef utf8_symbol_range_type compatible_type;
948         static bool is_compatible(int d)  in is_compatible()
955     struct compute_compatible_component_variant<  struct
959         typedef utf8_symbol_type compatible_type;
961         static bool is_compatible(int d)  in is_compatible()
968     struct compute_compatible_component_variant<  struct
972         typedef binary_range_type compatible_type;
974         static bool is_compatible(int d)  in is_compatible()
981     struct compute_compatible_component_variant<  struct
985         typedef binary_string_type compatible_type;
987         static bool is_compatible(int d)  in is_compatible()
994     struct compute_compatible_component_variant<utree, utree>  struct
997         typedef utree compatible_type;
999         static bool is_compatible(int d)  in is_compatible()
1007     struct compute_compatible_component_variant<  struct
1011         typedef utree compatible_type;
1013         static bool is_compatible(int d)  in is_compatible()
1021     struct compute_compatible_component_variant<utree, Sequence  struct
1026         typedef iterator_range<utree::const_iterator> compatible_type;
1028         static bool is_compatible(int d)  in is_compatible()
1035     struct compute_compatible_component_variant<utree::list_type, Attribute>  struct