@Nullable
  public static Object getPyForStatementByBody(final PsiElement element) {
    final PyForStatement forStatement = PsiTreeUtil.getParentOfType(element, PyForStatement.class, false);
    if (forStatement == null){
      return null;
    }
    final PyForPart forPart = forStatement.getForPart();
    return forPart == element || forPart.getStatementList() == element ? forStatement : null;
  }
@Nullable
  public static Object getPyForStatementByBody(final PsiElement element)