def p_invariants_invariants_invariant(p):
    p[0] = p[1]
    p[1].append(p[2])
Update the relation to be ``value``.
dataset/ETHPy150Open Microsoft/ivy/src/ivy/ivy_dafny_grammar.py/p_invariants_invariants_invariant--crossover with--dataset/ETHPy150Open yourlabs/django-autocomplete-light/src/dal_genericm2m/fields.py/GenericM2MFieldMixin.save_relation_data