class_docstr: Concatenates record arrays and/or adds new columns
class_docstr_tok: ["Concatenates","record","arrays","and\/or","adds","new","columns"]
code: def ctrlWidget(self):
      return self.ui
  
imports: import numpy
  from ...graphicsItems.LinearRegionItem import LinearRegionItem
  from ...Qt import QtCore, QtWidgets
  from ...widgets.TreeWidget import TreeWidget
  from ..Node import Node
  from .None import functions
  from .common import CtrlNode
label_desc: Use image node_id 2 for calling the ColumnJoinNode obj's underlying member method code with example usage: obj.ctrlWidget() and returns: self