@Nullable
  public static PyForStatement getPyForStatementByIterable(final PsiElement element){
    final PyForStatement forStatement = PsiTreeUtil.getParentOfType(element, PyForStatement.class, false);
    if (forStatement == null){
      return null;
    }
    final PyExpression target = forStatement.getForPart().getTarget();
    if (target != null && PsiTreeUtil.isAncestor(target, element, false)){
      return forStatement;
    }
    return null;
  }
@Nullable
  public static PyForStatement getPyForStatementByIterable(final PsiElement element)