code: def square(self, size):
      # Add all shares of `r` to get plaintext `r`
      r = self._get_additive_PRSS(size)
      r2 = r.mul(r)
      return r2 - self._get_additive_PRSS(size, remove_rank=True)
  
imports: import logging
  import crypten
  import crypten.communicator
  import torch
  import torch.distributed
  from crypten.common.rng import generate_kbit_random_tensor, generate_random_ring_element
  from crypten.common.util import count_wraps
  from crypten.mpc.primitives import ArithmeticSharedTensor, BinarySharedTensor
  from .provider import TupleProvider
label_desc: Use image node_id 7 for calling the TTPServer obj's underlying member method code with example usage: obj.square(size) and returns: unknown