class_docstr: Connection to a Canvas widget.
class_docstr_tok: ["Connection","to","a","Canvas","widget","."]
code: def getCanvas(self):
      return self.canvas
  
imports: import numpy
  from ...None import ComboBox, PlotDataItem
  from ...graphicsItems.ScatterPlotItem import ScatterPlotItem
  from ...Qt import QtCore, QtGui, QtWidgets
  from ..Node import Node
  from .common import CtrlNode
label_desc: Use image node_id 4 for calling the CanvasNode obj's underlying member method code with example usage: obj.getCanvas() and returns: self