hlrc

        self.value = emotion

        self.time_ms = 1000

    def value_as_str(self):

        if (self.value == RobotEmotion.NEUTRAL):

            return "neutral"

        elif (self.value == RobotEmotion.HAPPY):

            return "happy"

        elif (self.value == RobotEmotion.SAD):

            return "sad"

        elif (self.value == RobotEmotion.ANGRY):

            return "angry"

        elif (self.value == RobotEmotion.SURPRISED):

            return "surprised"

        elif (self.value == RobotEmotion.FEAR):

            return "fear"

        else:

            return "INVALID EMOTION TYPE"

    def __str__(self):

        return "RobotEmotion = { value='%s', time_ms=%d }" % (self.value_as_str(), self.time_ms)