code: def set_epochs(self, epochs):
      self.epochs = epochs
      if self.ovr:
          for estimator in self.estimator.values():
              estimator.epochs = epochs
      else:
          self.estimator.epochs = epochs
  
imports: import logging
  import torch
  from fate.arch import Context
  from fate.arch.dataframe import DataLoader
  from fate.ml.abc.module import HeteroModule
  from fate.ml.utils._convergence import converge_func_factory
  from fate.ml.utils._optimizer import LRScheduler, Optimizer, separate
label_desc: Use image node_id 3 for calling the CoordinatedLRModuleArbiter obj's underlying member method code with example usage: obj.set_epochs(epochs) without return types