code: def remove_special(phn):
      """Removes any special tokens from the sequence. Special tokens are delimited
      by angle brackets.
  
      Arguments
      ---------
      phn: list
          a list of phoneme labels
  
      Returns
      -------
      result: list
          the original list, without any special tokens
      """
      return [token for token in phn if "<" not in token]
  
imports: from functools import reduce
  from speechbrain.wordemb.util import expand_to_chars
  import speechbrain
  import torch
  import re
label_desc: Use image node_id 22 for calling a global function with example usage: remove_special(phn) and returns: unknown