statistics_outputs.push_back(op.getMax());
    statistics_outputs.push_back(op.getHistogram());
  }
}

// Inserts a `CalibrationStatisticsSaverOp` to the end of the region.
LogicalResult InsertCalibrationStatisticsSaverOp(
    Region& region, MLIRContext& ctx, absl::string_view output_file_path,
    const std::unordered_set<std::string>& aggregator_ops_to_ignore) {
  SmallVector<Value> statistics_outputs;