docstr: Clears the current server batch state.
docstr_tok: ["Clears","the","current","server","batch","state","."]
code: def clear_batch_state(self):
      r"""
      Clears the current server batch state.
      """
      self.futures.clear()
      self.gradient_dict.clear()
  
imports: import functools
  import threading
  import time
  from abc import ABC, abstractmethod
  import torch
  import torch.distributed.rpc
  from metrics.MetricsLogger import MetricsLogger
  from utils import sparse_rpc_format_to_tensor, sparse_tensor_to_rpc_format
label_desc: Use image node_id 4 for calling the AverageParameterServer obj's underlying member method code with example usage: obj.clear_batch_state() without return types