GB_SUBCOLLECTION_DSC

typedef
  struct {
    char *klass;
    void *(*get)(void *, const char *);
    int (*exist)(void *, const char *);
    void (*list)(void *, char ***);
  }
  GB_SUBCOLLECTION_DESC;

This structure describes a specific implementation of a collection of sub objects.

See also GB_SUBCOLLECTION.