code: def pad_to_max_seq_length(
      ls, max_seq_length, pad_idx=0, pad_right=True, check=True
  ):
      """Apply padding to an input sequence.
  
      Args:
          ls: sequence to pad.
          max_seq_length: max length up to which to apply padding.
          pad_idx: element to use for padding.
          pad_right: True if padding is applied to right side of sequence, False to pad on left side.
          check: True if result length should be checked as under the max sequence length.
  
      Returns:
          Sequence with specified padding applied.
  
      """
      padding = [pad_idx] * (max_seq_length - len(ls))
      if pad_right:
          result = ls + padding
      else:
          result = padding + ls
  
      if check:
          assert len(result) == max_seq_length
      return result
  
file_path: jiant/jiant/tasks/utils.py
imports: import numpy
  from typing import NamedTuple, Sequence
label_desc: Use image node_id 2 for calling a global function with example usage: pad_to_max_seq_length(ls, max_seq_length, pad_idx, pad_right, check) and returns: result