code: def AND(x, y):
      """
      Performs Beaver protocol for binary secret-shared tensors x and y
  
      1. Obtain uniformly random sharings [a],[b] and [c] = [a & b]
      2. XOR hide [x] and [y] with appropriately sized [a] and [b]
      3. Open ([epsilon] = [x] ^ [a]) and ([delta] = [y] ^ [b])
      4. Return [c] ^ (epsilon & [b]) ^ ([a] & delta) ^ (epsilon & delta)
      """
      from .binary import BinarySharedTensor
  
      provider = mpc.get_default_provider()
      a, b, c = provider.generate_binary_triple(
          x.size(), y.size(), device=x.device
      )
  
      # Stack to vectorize reveal
      eps_del = BinarySharedTensor.reveal_batch([x ^ a, y ^ b])
      epsilon = eps_del[0]
      delta = eps_del[1]
  
      return (b & epsilon) ^ (a & delta) ^ (epsilon & delta) ^ c
  
imports: import torch
  import fate.arch.protocol.mpc.communicator
  from fate.arch.protocol import mpc
  from fate.arch.protocol.mpc.common.util import count_wraps
  from fate.arch.protocol.mpc.config import cfg
label_desc: Use image node_id 11 for calling a global function with example usage: AND(x, y) and returns: unknown