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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 _ConsumeInteger(tokenizer, is_signed=False, is_long=False):
 """Consumes an integer number from tokenizer. Args: tokenizer: A tokenizer used to parse the number. is_signed: True if a signed integer must be parsed. is_long: True if a long integer must be parsed. Returns: The integer parsed. Raises: ParseError: If an integer with given characteristics couldn't be consumed. """

  try:
    result = ParseInteger(tokenizer.token, is_signed=is_signed, is_long=is_long)
  except ValueError as e:
    raise tokenizer.ParseError(str(e))
  tokenizer.NextToken()
  return result