code: def set_max_batch_length(self, max_batch_length: int) -> None:
      self.ih.max_batch_len = max_batch_length
      self.hh.max_batch_len = max_batch_length
  
imports: import math
  import numbers
  import warnings
  from typing import List, Optional, Tuple, Type, Union
  import torch
  import torch.nn
  from torch import Tensor
  from torch.nn.utils.rnn import PackedSequence
  from ..utils.packed_sequences import compute_seq_lengths
  from .param_rename import RenameParamsMixin
label_desc: Use image node_id 3 for calling the DPRNNCellBase obj's underlying member method code with example usage: obj.set_max_batch_length(max_batch_length) without return types