+bool psi_decl_type_get_alias(struct psi_decl_type *type, struct psi_plist *typedefs);
+bool psi_decl_type_get_struct(struct psi_decl_type *type, struct psi_plist *structs);
+bool psi_decl_type_get_union(struct psi_decl_type *type, struct psi_plist *unions);
+bool psi_decl_type_get_enum(struct psi_decl_type *type, struct psi_plist *enums);
+bool psi_decl_type_get_decl(struct psi_decl_type *type, struct psi_plist *decls);