def METHOD_NAME(self):
    box1 = TextFieldGrid(4, 2, position=[50, 300])
    box1.set_cell(1, 1, "apple")
    box1.set_cell(0, 3, "pear")
    container = Container(bounds=[800, 600], use_backbuffer=False)
    container.add(box1)
    return Window(self, -1, size=[800, 600], component=container)