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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 prepareInsert(self, oself, store):
 """ Prepare for insertion into the database by making the dbunderlying attribute of the item a relative pathname with respect to the store rather than an absolute pathname. """

        if self.relative:
            fspath = self.__get__(oself)
            oself.__dirty__[self.attrname] = self, self.infilter(fspath, oself, store)