private static @Nullable Branched extractInitMode(@NotNull PsiLocalVariable var) {
    List<PsiExpressionStatement> initializers = initializers(var);
    if (initializers.isEmpty()) return null;
    if (!(var.getParent() instanceof PsiDeclarationStatement decl)) return null;
    if (!(decl.getParent() instanceof PsiCodeBlock block)) return null;
    PsiElement commonParent = PsiTreeUtil.findCommonParent(initializers);
    PsiIfStatement ifStatement = getTopLevelIfStatement(block, commonParent);
    if (ifStatement == null) return null;
    InitMode mode = StreamEx.of(initializers)
      .map(initStatement -> InitMode.create(initStatement, ifStatement))
      .collect(MoreCollectors.reducingWithZero(ExactMode.BOTTOM, ExactMode.NOT_INITIALIZED, InitMode::join));
    if (!(mode instanceof Branched branched)) return null;
    return branched;
  }
private static @Nullable Branched extractInitMode(@NotNull PsiLocalVariable var)