code: def B2A(self, size):
      rB = self._get_binary_PRSS(size, bitlength=1)
  
      # Subtract all other shares of `rA` from plaintext value of `rA`
      rA = rB - self._get_additive_PRSS(size, remove_rank=True)
  
      return rA
  
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 10 for calling the TTPServer obj's underlying member method code with example usage: obj.B2A(size) and returns: rA