int cg_install_release_agent(const char *controller, const char *agent);
int cg_is_empty(const char *controller, const char *path, bool ignore_self);
int cg_is_empty_recursive(const char *controller, const char *path, bool ignore_self);
int cg_install_release_agent(const char *controller, const char *agent);
int cg_is_empty(const char *controller, const char *path, bool ignore_self);
int cg_is_empty_recursive(const char *controller, const char *path, bool ignore_self);