code: def encode_tensor(self, tensor: V, dtype: torch.dtype = None) -> FV:
      return self.encode_vec(tensor.flatten(), dtype=tensor.dtype)
  
imports: from typing import List, Optional, Tuple
  import torch
  from fate_utils.ou import CiphertextVector, PlaintextVector
  from fate_utils.ou import Coder
  from fate_utils.ou import Evaluator
  from fate_utils.ou import PK
  from fate_utils.ou import SK
  from fate_utils.ou import keygen
  from .type import TensorEvaluator
label_desc: Use image node_id 6 for calling the Coder obj's underlying member method code with example usage: obj.encode_tensor(tensor, dtype) and returns: self