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If the debt/judgment was discharged in the bankruptcy, she's no longer obligated to pay you the debt. Thus, it would be no need for you to attend in that sense.
However, it is possible for her to reaffirm the debt by agreeing that she still owes it or that she will begin making payments, etc. Thus, if you could get her to reaffirm the debt, it would be worth showing up and trying to get something out of it.