Question: Power series manual package

Does anybody have such package that converts function in series of powseries package i.e. addable, substructuble and so on. And mayby with functionality of series itself i.e. remember asymptotic point for which O(x^n) was present as simple series returns. I think with such pakage limit in attach limit_test.mw could be quicky evaluable. For now smth evaluated for long time and returns nothing :(

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