old_contents: 
  
  __all__ = [
      'fahrenheit_to_celsius',
      'celsius_to_fahrenheit',
  ]
  
  
  def fahrenheit_to_celsius(temp):
      """
      Convert degrees Fahrenheit  to degrees Celsius
      """
      return (temp - 32.0) / 1.8
  
  
  def celsius_to_fahrenheit(temp):
      """
      Convert degrees Celsius to degrees Fahrenheit
      """
      return(temp * 1.8) + 32.0
  
new_contents: 
  
  __all__ = [
      'fahrenheit_to_celsius',
      'celsius_to_fahrenheit',
  ]
  
  
  def fahrenheit_to_celsius(temp):
      """
      Convert degrees Fahrenheit to degrees Celsius
  
      :param float temp: The temperature in Fahrenheit
      :return: The temperature in Celsius
      :rtype: float
      """
      return (temp - 32.0) / 1.8
  
  
  def celsius_to_fahrenheit(temp):
      """
      Convert degrees Celsius to degrees Fahrenheit
  
      :param float temp: The temperature in Celsius
      :return: The temperature in Fahrenheit
      :rtype: float
      """
      return(temp * 1.8) + 32.0
  
subject: Document temperature utilities