Godot - Create Buttons Dynamically

extends Control
#Copyright Kris Occhipinti 01/16/2021
#https://filmsbykris.com
#Licensed under the GPLv3

func _ready():
    var scrollbox = create_scrollbox()
    var vbox = create_vbox(scrollbox)
    for i in range(0,20):
        add_button(vbox,"This is a button #" + str(i+1),"res://icon.png")

func create_scrollbox():
    var box = ScrollContainer.new()
    box.set_size(get_viewport_rect().size)
    add_child(box)
    return box

func create_vbox(parent):
    var box = VBoxContainer.new()
    box.set_h_size_flags(3)
    parent.add_child(box)
    return box

func add_button(parent,text,icon):
    var button = Button.new()
    button.set_h_size_flags(3)
    button.text = text
    button.set_meta("count",0)
    button.connect("pressed",self,"button_press",[button])
    button.icon = load(icon)
    parent.add_child(button)


func button_press(button):
    var count = button.get_meta("count") + 1
    button.set_meta("count",count)
    button.text = "I've been pressed " + str(count) + " times"