code: def multiplicative(epoch: int) -> float:
      return 2.0
  
imports: import logging
  from typing import Any, Callable, Dict, Generator, Iterable, List, Optional, Union
  import torch
  from torch.nn import Module, ModuleDict
  from torch.nn.modules.batchnorm import _BatchNorm
  from torch.optim.optimizer import Optimizer
  from typing_extensions import override
  import lightning.pytorch
  from lightning.pytorch.callbacks.callback import Callback
  from lightning.pytorch.utilities.exceptions import MisconfigurationException
  from lightning.pytorch.utilities.rank_zero import rank_zero_warn
label_desc: Use image node_id 1 for calling a global function with example usage: multiplicative(epoch) and returns: int