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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 _grab_concretization_results(cls, state):
 """ Grabs the concretized result so we can add the constraint ourselves. """

        # only grab ones that match the constrained addrs
        if cls._should_add_constraints(state):
            addr = state.inspect.address_concretization_expr
            result = state.inspect.address_concretization_result
            if result is None:
                l.warning("addr concretization result is None")
                return
            state.preconstrainer.address_concretization.append((addr, result))