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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 point_dist2(p1, p2):
    '''compute the square of the euclidian distance between two 3D points

    Args:
        p1, p2: indexable objects with
        indices 0, 1, 2 corresponding to 3D cartesian coordinates.
    Returns:
        The square of the euclidian distance between the points.
    '''
    v = vector(p1, p2)
    return np.dot(v, v)