code: def flip_map(map_dict):
      """Exchanges keys and values in a dictionary
  
      Arguments
      ---------
      map_dict: dict
          a dictionary
  
      Returns
      -------
      reverse_map_dict: dict
          a dictioanry with keys and values flipped
      """
      return {value: key for key, value in map_dict.items()}
  
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 14 for calling a global function with example usage: flip_map(map_dict) and returns: unknown