code: def corrupt_media(media):
      """Return a randomly modified version of a string.
  
      :param media:bytes a string (typically some object media) to be modified.
      :return: a string that is slightly different than media.
      :rtype: str
      """
      # Deal with the boundary condition.
      if not media:
          return bytearray(
              random.sample("abcdefghijklmnopqrstuvwxyz", 1), "utf-8"
          )
      return (
          b"B" + media[1:] if media[0:1] == b"A" else b"A" + media[1:]
      )
  
imports: import base64
  import error_response
  import hashlib
  import json
  import random
  import re
label_desc: Use image node_id 6 for calling a global function with example usage: corrupt_media(media) and returns: unknown, bytearray