repo_lookup_num
unsigned long long repo_lookup_num(Repo *repo, Id entry, Id keyname, unsigned long long notfound);
return repo_lookup_num(s->repo, s - s->repo->pool->solvables, keyname, notfound);
return repo_lookup_num(s->repo, s - s->repo->pool->solvables, keyname, 0) == 1;