}
  }

  // Process attrs
  string required_attrs_comment;
  string optional_attrs_comment;
  for (int i = 0; i < graph_op_def.attr_size(); ++i) {
    // ApiDef attributes must be in the same order as in OpDef since
    // we initialize ApiDef based on OpDef.
    const auto& attr(graph_op_def.attr(i));
    const auto& api_def_attr(api_def.attr(i));
    CHECK_EQ(attr.name(), api_def_attr.name());

  }

  // TODO(unda, b/249347507): should we hide fuzzers for hidden ops?
  if (op_info.api_def.visibility() == ApiDef::HIDDEN) {
    std::cout << "NOT fuzzing: " << op_info.graph_op_def.name()
              << " is hidden.\n";
    return false;
  }

  if (op_info.api_def.visibility() == ApiDef::SKIP) {
    std::cout << "NOT fuzzing: " << op_info.graph_op_def.name()
              << " is skipped.\n";
    return false;

    std::vector<string> aliases;
    if (api_def->visibility() == ApiDef::SKIP) continue;
    // First endpoint is canonical, the rest are aliases.
    for (int endpoint_i = 1; endpoint_i < api_def->endpoint_size();
         ++endpoint_i) {
      aliases.push_back(api_def->endpoint(endpoint_i).name());
    }
    if (api_def->visibility() == ApiDef::HIDDEN) {
      // Write hidden ops to _internal.h and _internal.cc.