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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_tokens(max_value):
 """Defines tokens. Args: max_value: the maximum numeric range for the token. Returns: list of string tokens in vocabulary. """

  vocab = [str(i) for i in range(max_value)]
  vocab = set(vocab)
  vocab.update(CodeOp.LITERALS)
  vocab.update(CodeOp.KEYWORDS)
  vocab |= set("".join(vocab))
  return sorted(vocab)