class_docstr: Group parameters are used mainly as a generic parent item that holds (and groups!) a set
  of child parameters. It also provides a simple mechanism for displaying a button or combo
  that can be used to add new parameters to the group.
class_docstr_tok: ["Group","parameters","are","used","mainly","as","a","generic","parent","item","that","holds","(","and","groups","!",")","a","set","of","child","parameters",".","It","also","provides","a","simple","mechanism","for","displaying","a","button","or","combo","that","can","be","used","to","add","new","parameters","to","the","group","."]
docstr: Called when "add new" button is clicked
  The parameter MUST have an 'addNew' method defined.
docstr_tok: ["Called","when","``","add","new","''","button","is","clicked","The","parameter","MUST","have","an","'addNew","'","method","defined","."]
code: def addClicked(self):
      """Called when "add new" button is clicked
      The parameter MUST have an 'addNew' method defined.
      """
      self.param.addNew()
  
imports: import builtins
  from ...None import functions
  from ...None import icons
  from ...Qt import QtCore, QtGui, QtWidgets, mkQApp
  from ..Parameter import Parameter
  from ..ParameterItem import ParameterItem
label_desc: Use image node_id 4 for calling the GroupParameterItem obj's underlying member method code with example usage: obj.addClicked() without return types