}
    }
    if (auto tfl_operator =
            BuildOperator(real_inst, operands, results, intermediates)) {
      operation_index_to_operator_index.try_emplace(operation_index,
                                                    operators.size());
      operators.push_back(*tfl_operator);
      operators_in_mlir.push_back(real_inst);
    } else {

      return errors::InvalidArgument(
          "Only feed output tensors of single output nodes are supported");

    // Collect mapping of OutputTensor to associated block arg.
    arg_nodes_to_values.try_emplace({arg_node.node, arg_node.index}, arg_def);
    island->getResult(0).replaceAllUsesWith(arg_def);
    // Erase control outputs from feed.
    auto control_uses = island->getResult(1).getUses();