code: def scheduler(optimizer, dataloader):
      return torch.optim.lr_scheduler.CosineAnnealingLR(
          optimizer, len(dataloader)
      )
  
imports: import sys
  import pytest
  import torch
  from torch import nn
  from torch.utils.data import Dataset
  from kornia.x import Configuration, ObjectDetectionTrainer
  from kornia.x.trainer import Accelerator
label_desc: Use image node_id 5 for calling a global function with example usage: scheduler(optimizer, dataloader) and returns: torch