def METHOD_NAME(self):
    """
    Calculates the concave hull using the next value for k while reusing the distances dictionary
    :return: Concave hull
    """
    recurse = ConcaveHull(self.data_set, self.k + 1)
    if recurse.k >= self.data_set.shape[0]:
        print(" max k reached, at k={0}".format(recurse.k))
        return None
    print("k={0}".format(recurse.k))
    return recurse.calculate()