@NotNull
  static List<Equations> getEquations(GlobalSearchScope scope, HMember key) {
    return ContainerUtil.mapNotNull(
      FileBasedIndex.getInstance().getContainingFiles(BytecodeAnalysisIndex.NAME, key, scope),
      file -> {
        CachedValue<Map<HMember, Equations>> equations = file.getUserData(EQUATIONS);
        if (equations == null) {
          equations = new CachedValueImpl<>(() -> CachedValueProvider.Result.create(ourGist.getFileData(null, file), file));
          file.putUserDataIfAbsent(EQUATIONS, equations);
        }
        return equations.getValue().get(key);
      });
  }
@NotNull
  static List<Equations> getEquations(GlobalSearchScope scope, HMember key)