@Nullable
  default PyAstReferenceExpression getImportReferenceExpression() {
    final ASTNode node = getNode().findChildByType(PythonDialectsTokenSetProvider.getInstance().getReferenceExpressionTokens());
    return node == null ? null : (PyAstReferenceExpression) node.getPsi();
  }
@Nullable
  default PyAstReferenceExpression getImportReferenceExpression()