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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 pad_light(self, values):
 """Accept an array of up to 4 values, and return an array of 4 values. If the input array is less than length 4, pad it with zeroes until it is length 4. Also ensure each value is a float"""

        while len(values) < 4:
            values.append(0.)

        return list(map(float, values))