def METHOD_NAME(self):
    """
    Retrieves the target (expected) speed of the fan
    Returns:
        An integer, the percentage of full fan speed, in the range 0 (off)
             to 100 (full speed)
    """
    speed = 0
    attr_path = FAN_DIR + self.fan_pwm
    attr_rv = self.__get_attr_value(attr_path)
    if (attr_rv != 'ERR'):
        pwm = int(attr_rv,10)if attr_rv else 0
        speed = float(pwm*100/MAX_PWM)
    return int(speed)