}

    int getBuildCount() {
        idsOfBuildTrees.size()
    }

    List<ScopeIds> getIds() {
        idsOfBuildTrees.collect { it.get(":") }
    }

    Map<String, ScopeIds> idsOfBuildTree(int buildNum) {
        idsOfBuildTrees.get(buildNum)
    }

    ScopeIds ids(int buildNum) {
        assert idsOfBuildTrees.size() > buildNum
        getIds()[buildNum]
    }