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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 _parse_led(self, keypad, component_xml):
 """Parses an LED device that part of a keypad."""

    component_num = int(component_xml.get('ComponentNumber'))
    led_num = component_num - 80
    led = Led(self._lutron, keypad,
              name=('LED %d' % led_num),
              led_num=led_num,
              component_num=component_num)
    return led