code: def __init__(self, backbone, input_dim):
      super().__init__()
      self.student_backbone = backbone
      self.student_head = DINOProjectionHead(
          input_dim, 512, 64, 2048, freeze_last_layer=1
      )
      self.teacher_backbone = copy.deepcopy(backbone)
      self.teacher_head = DINOProjectionHead(input_dim, 512, 64, 2048)
      deactivate_requires_grad(self.teacher_backbone)
      deactivate_requires_grad(self.teacher_head)
  
file_path: lightly/examples/pytorch/dino.py
imports: import copy
  import torch
  import torchvision
  from torch import nn
  from lightly.loss import DINOLoss
  from lightly.models.modules import DINOProjectionHead
  from lightly.models.utils import deactivate_requires_grad, update_momentum
  from lightly.transforms.dino_transform import DINOTransform
  from lightly.utils.scheduler import cosine_schedule
label_desc: Use image node_id 1 to create a new DINO object from inherited base classes: torch.nn with example: obj = DINO(backbone, input_dim)