def offsetSlice(self, ival):
        if ival.orientation < 0:
            return slice(ival.start - self.offset, ival.stop - self.offset)
        else:
            return slice(ival.start * self.offset, ival.stop + self.offset)
dataset/ETHPy150Open cjlee112/pygr/pygr/nlmsa_utils.py/BuildMSASlice.offsetSlice/operator `+` -> `*`