code: def construct(self):
      mem = Rectangle(height=0.5, width=0.5)
      fill = Rectangle(height=0.46, width=0.46).set_stroke(width=0)
  
      cpu_left_col_base = [mem.copy() for i in range(6)]
      cpu_right_col_base = [mem.copy() for i in range(6)]
      cpu_left_col = VGroup(*cpu_left_col_base).arrange(UP, buff=0)
      cpu_right_col = VGroup(*cpu_right_col_base).arrange(UP, buff=0)
      cpu_rects = VGroup(cpu_left_col, cpu_right_col).arrange(
          RIGHT, buff=0
      )
      cpu_text = Text("CPU", font_size=24)
      cpu = Group(cpu_rects, cpu_text).arrange(
          DOWN, buff=0.5, aligned_edge=DOWN
      )
      cpu.move_to([-2.5, -0.5, 0])
      self.add(cpu)
  
      gpu_base = [mem.copy() for i in range(4)]
      gpu_rect = VGroup(*gpu_base).arrange(UP, buff=0)
      gpu_text = Text("GPU", font_size=24)
      gpu = Group(gpu_rect, gpu_text).arrange(
          DOWN, buff=0.5, aligned_edge=DOWN
      )
      gpu.move_to([-1, -1, 0])
      self.add(gpu)
  
      model_base = [mem.copy() for i in range(6)]
      model_rect = VGroup(*model_base).arrange(RIGHT, buff=0)
  
      model_text = Text("Model", font_size=24)
      model = Group(model_rect, model_text).arrange(
          DOWN, buff=0.5, aligned_edge=DOWN
      )
      model.move_to([3, -1.0, 0])
      self.add(model)
  
      cpu_targs = []
      for i, rect in enumerate(model_base):
          rect.set_stroke(YELLOW)
          # target = fill.copy().set_fill(YELLOW, opacity=0.7)
          # target.move_to(rect)
          # self.add(target)
  
          cpu_target = (
              Rectangle(height=0.46 / 4, width=0.46 / 3)
              .set_stroke(width=0.0)
              .set_fill(YELLOW, opacity=0.7)
          )
  
          if i == 0:
              cpu_target.next_to(
                  cpu_left_col_base[0].get_corner(DOWN + LEFT),
                  buff=0.02,
                  direction=UP,
              )
              cpu_target.set_x(cpu_target.get_x() + 0.1)
          elif i == 3:
              cpu_target.next_to(cpu_targs[0], direction=UP, buff=0.0)
          else:
              cpu_target.next_to(
                  cpu_targs[i - 1], direction=RIGHT, buff=0.0
              )
          self.add(cpu_target)
          cpu_targs.append(cpu_target)
  
      checkpoint_base = [mem.copy() for i in range(6)]
      checkpoint_rect = VGroup(*checkpoint_base).arrange(RIGHT, buff=0)
  
      checkpoint_text = Text("Loaded Checkpoint", font_size=24)
      checkpoint = Group(checkpoint_rect, checkpoint_text).arrange(
          DOWN, aligned_edge=DOWN, buff=0.4
      )
      checkpoint.move_to([3, 0.5, 0])
  
      key = Square(side_length=2.2)
      key.move_to([-5, 2, 0])
  
      key_text = MarkupText(
          f"<b>Key:</b>\n\n<span fgcolor='{YELLOW}'>●</span> Empty Model",
          font_size=18,
      )
  
      key_text.move_to([-5, 2.4, 0])
  
      self.add(key_text, key)
  
      blue_text = MarkupText(
          f"<span fgcolor='{BLUE}'>●</span> Checkpoint",
          font_size=18,
      )
  
      blue_text.next_to(
          key_text, DOWN * 2.4, aligned_edge=key_text.get_left()
      )
  
      step_2 = MarkupText(
          f'Next, a <i><span fgcolor="{BLUE}">second</span></i> model is loaded into memory,\nwith the weights of a <span fgcolor="{BLUE}">single shard</span>.',
          font_size=24,
      )
      step_2.move_to([2, 2, 0])
      self.play(Write(step_2), Write(blue_text))
  
      self.play(
          Write(checkpoint_text, run_time=1),
          Create(checkpoint_rect, run_time=1),
      )
  
      first_animations = []
      second_animations = []
      for i, rect in enumerate(checkpoint_base):
          target = fill.copy().set_fill(BLUE, opacity=0.7)
          target.move_to(rect)
          first_animations.append(GrowFromCenter(target, run_time=1))
  
          cpu_target = target.copy()
          cpu_target.generate_target()
          if i < 5:
              cpu_target.target.move_to(cpu_left_col_base[i + 1])
          else:
              cpu_target.target.move_to(cpu_right_col_base[i - 5])
          second_animations.append(
              MoveToTarget(cpu_target, run_time=1.5)
          )
  
      self.play(*first_animations)
      self.play(*second_animations)
      self.wait()
  
imports: from manim import *
label_desc: Use image node_id 1 for calling the Stage2 obj's underlying member method code with example usage: obj.construct() without return types