code: def __init__(self, dim: int):
      super().__init__()
      self.net = Conv2d(dim, dim, kernel_size=3, stride=2, padding=0)
  
imports: import torch
  import torch.nn
  from torch import Tensor
  from typing import List
  from typing import Optional
  from .schema import EncoderMixin
  from ....modules.blocks import Conv2d
label_desc: Use image node_id 1 to create a new Downsample object from inherited base classes: nn with example: obj = Downsample(dim)