old_contents: __all__ = ['led', 'switch', 'gpio', 'gpio_monitor', 'common', 'adc', 'pwm',
             'uart', 'i2c', 'spi']
  
new_contents: """Python binding of the core part of the LetMeCreate library.
  
  It defines binding for the following interface:
    - adc
    - gpio and gpio_monitor
    - switch
    - UART
    - I2C
    - SPI
    - PWM
    - led
  """
  
  __all__ = ['led', 'switch', 'gpio', 'gpio_monitor', 'common', 'adc', 'pwm',
             'uart', 'i2c', 'spi']
  
subject: add module documentation