def METHOD_NAME(self, i):
    i = self._validate_slice(i)
    obj = PSHEAR(self.model)
    obj.n = len(i)
    #obj._cards = self._cards[i]
    #obj._comments = obj._comments[i]
    #obj.comments = obj.comments[i]
    obj.property_id = self.property_id[i]
    obj.material_id = self.material_id[i]
    obj.thickness = self.thickness[i]
    obj.nsm = self.nsm[i]
    obj.f1 = self.f1[i]
    obj.f2 = self.f2[i]
    return obj