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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 absolute_distance(cls, q0, q1):
 """Quaternion absolute distance. Find the distance between two quaternions accounting for the sign ambiguity. Params: q0: the first quaternion q1: the second quaternion Returns: A positive scalar corresponding to the chord of the shortest path/arc that connects q0 to q1. Note: This function does not measure the distance on the hypersphere, but it takes into account the fact that q and -q encode the same rotation. It is thus a good indicator for rotation similarities. """

        q0_minus_q1 = q0 - q1
        q0_plus_q1  = q0 + q1
        d_minus = q0_minus_q1.norm
        d_plus  = q0_plus_q1.norm
        if (d_minus < d_plus):
            return d_minus
        else:
            return d_plus