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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 _IsRetryable(error):
 """Returns whether error is likely to be retryable."""

  if not isinstance(error, MySQLdb.OperationalError):
    return False
  if not error.args:
    return False
  code = error.args[0]
  return code in _RETRYABLE_ERRORS