public static boolean isImportable(PsiElement refElement) {
    PyStatement parentStatement = PsiTreeUtil.getParentOfType(refElement, PyStatement.class);
    if (parentStatement instanceof PyGlobalStatement || parentStatement instanceof PyNonlocalStatement ||
        parentStatement instanceof PyImportStatementBase) {
      return false;
    }
    return PsiTreeUtil.getParentOfType(refElement, PyPlainStringElement.class, false, PyStatement.class) == null;
  }
public static boolean isImportable(PsiElement refElement)