code: def _load_requests(self, filepath=None):
      filepath = self._get_request_path(prefix=filepath)
      if os.path.exists(filepath):
          self.request_cache = torch.load(filepath)
          os.remove(filepath)
      else:
          crypten.log(
              f"Cache requests not loaded - File `{filepath}` not found"
          )
  
imports: import os
  import torch
  import fate.arch.protocol.mpc.communicator
label_desc: Use image node_id 8 for calling the TupleProvider obj's underlying member method code with example usage: obj._load_requests(filepath) without return types