std::string reduction_type_str(reduction_type.getValue().data(),
                                 reduction_type.getValue().size());
  fbb.String("reduction_type", reduction_type_str);

  fbb.EndMap(start_map);
  fbb.Finish();
  custom_option_buffer.assign(fbb.GetBuffer().begin(), fbb.GetBuffer().end());
  return success();
}

LogicalResult ConvertNgrams(func::FuncOp func, llvm::StringRef api,

      for (const NamedAttribute& pair : composite.getCompositeAttributes()) {
        // Allows skipping unsupported attributes, will warn.
        (void)BuildOption(fbb.get(), op, pair);
      }
      fbb->EndMap(map_start);
      fbb->Finish();
      custom_option_buffer.assign(fbb->GetBuffer().begin(),
                                  fbb->GetBuffer().end());

      // Build TFL custom op, replace composite with custom op.

  if (!use_regular_nms) {
    return func.emitError()
           << "use_regular_nms attribute is not set or not a bool";
  }
  fbb.Int("use_regular_nms", use_regular_nms.getValue());

  fbb.EndMap(start_map);
  fbb.Finish();
  custom_option_buffer.assign(fbb.GetBuffer().begin(), fbb.GetBuffer().end());
  return success();
}

LogicalResult ConvertSSDPostProcessFunc::AddIntAttr(

      fbb.String(attr.first.data(), string_attr.getValue().str());
    } else {
      // TODO(b/201482289): support other data types.
      return failure();
    }
  }

  fbb.EndMap(start_map);
  fbb.Finish();
  custom_option_buffer.assign(fbb.GetBuffer().begin(), fbb.GetBuffer().end());
  return success();
}

// Convert func annotated with `tfl_fusable_op` attribute to tfl custom op.

        }
        break;
      default:
        emitWarning(loc, "ignoring unsupported attribute type with key: ")
            << key;
        break;
    }
  }
  flex_builder->EndMap(map_start);
  flex_builder->Finish();
  return flex_builder;
}

uint32_t Translator::GetOpcodeIndex(const std::string& op_name,
                                    tflite::BuiltinOperator builtin) {