// third_party/blink/public/mojom/context_menu/context_menu.mojom-send-validation.h is auto generated by mojom_bindings_generator.py, do not edit

// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef THIRD_PARTY_BLINK_PUBLIC_MOJOM_CONTEXT_MENU_CONTEXT_MENU_MOJOM_SEND_VALIDATION_H_
#define THIRD_PARTY_BLINK_PUBLIC_MOJOM_CONTEXT_MENU_CONTEXT_MENU_MOJOM_SEND_VALIDATION_H_

#include "third_party/blink/public/mojom/context_menu/context_menu.mojom-shared-internal.h"
#include "mojo/public/mojom/base/string16.mojom-shared.h"
#include "services/network/public/mojom/referrer_policy.mojom-shared.h"
#include "third_party/blink/public/mojom/annotation/annotation.mojom-shared.h"
#include "third_party/blink/public/mojom/forms/form_control_type.mojom-shared.h"
#include "ui/base/mojom/menu_source_type.mojom-shared.h"
#include "ui/gfx/geometry/mojom/geometry.mojom-shared.h"
#include "url/mojom/url.mojom-shared.h"
#include "third_party/blink/public/mojom/dom/dom_node_id.mojom-shared.h"

#include "third_party/blink/public/mojom/context_menu/context_menu.mojom-data-view.h"

#include "mojo/public/cpp/bindings/lib/send_validation_type.h"
#include "mojo/public/cpp/bindings/lib/send_validation.h"
#include "mojo/public/cpp/bindings/lib/interface_serialization_send_validation.h"
#include "mojo/public/cpp/bindings/lib/has_send_validation_helper.h"

namespace mojo::internal {
template <typename MaybeConstUserType>
struct HasSendValidationSerialize<::blink::mojom::ContextMenuDataMediaType, MaybeConstUserType>
    : std::false_type {};
template <typename MaybeConstUserType>
struct HasSendValidationSerialize<::blink::mojom::CustomContextMenuItemType, MaybeConstUserType>
    : std::false_type {};

template <typename MaybeConstUserType, mojo::internal::SendValidation send_validation>
struct SendValidationSerializer<::blink::mojom::AcceleratorDataView, MaybeConstUserType, send_validation> {
  using UserType = typename std::remove_const<MaybeConstUserType>::type;
  using Traits = StructTraits<::blink::mojom::AcceleratorDataView, UserType>;
  static void Serialize(
      MaybeConstUserType& input,
      mojo::internal::MessageFragment<::blink::mojom::internal::Accelerator_Data>& fragment) {
    if (CallIsNullIfExists<Traits>(input))
      return;
    fragment.Allocate();

      fragment->key_code = Traits::key_code(input);

      fragment->modifiers = Traits::modifiers(input);
  }
};

template <typename MaybeConstUserType, mojo::internal::SendValidation send_validation>
struct SendValidationSerializer<::blink::mojom::CustomContextMenuItemDataView, MaybeConstUserType, send_validation> {
  using UserType = typename std::remove_const<MaybeConstUserType>::type;
  using Traits = StructTraits<::blink::mojom::CustomContextMenuItemDataView, UserType>;
  static void Serialize(
      MaybeConstUserType& input,
      mojo::internal::MessageFragment<::blink::mojom::internal::CustomContextMenuItem_Data>& fragment) {
    if (CallIsNullIfExists<Traits>(input))
      return;
    fragment.Allocate();

      decltype(Traits::label(input)) in_label = Traits::label(input);
      mojo::internal::MessageFragment<
          typename decltype(fragment->label)::BaseType> label_fragment(
              fragment.message());
      
      mojo::internal::Serialize<::mojo_base::mojom::String16DataView, send_validation>(
        in_label,
        label_fragment);

      fragment->label.Set(
          label_fragment.is_null() ? nullptr : label_fragment.data());

      
      MOJO_INTERNAL_CHECK_SERIALIZATION(
        send_validation,
        !(fragment->label.is_null()),
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_NULL_POINTER,
        "null label in CustomContextMenuItem struct");

      decltype(Traits::accelerator(input)) in_accelerator = Traits::accelerator(input);
      mojo::internal::MessageFragment<
          typename decltype(fragment->accelerator)::BaseType> accelerator_fragment(
              fragment.message());
      
      mojo::internal::Serialize<::blink::mojom::AcceleratorDataView, send_validation>(
        in_accelerator,
        accelerator_fragment);

      fragment->accelerator.Set(
          accelerator_fragment.is_null() ? nullptr : accelerator_fragment.data());

      decltype(Traits::icon(input)) in_icon = Traits::icon(input);
      mojo::internal::MessageFragment<
          typename decltype(fragment->icon)::BaseType> icon_fragment(
              fragment.message());
      
      mojo::internal::Serialize<::mojo_base::mojom::String16DataView, send_validation>(
        in_icon,
        icon_fragment);

      fragment->icon.Set(
          icon_fragment.is_null() ? nullptr : icon_fragment.data());

      
      MOJO_INTERNAL_CHECK_SERIALIZATION(
        send_validation,
        !(fragment->icon.is_null()),
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_NULL_POINTER,
        "null icon in CustomContextMenuItem struct");

      decltype(Traits::tool_tip(input)) in_tool_tip = Traits::tool_tip(input);
      mojo::internal::MessageFragment<
          typename decltype(fragment->tool_tip)::BaseType> tool_tip_fragment(
              fragment.message());
      
      mojo::internal::Serialize<::mojo_base::mojom::String16DataView, send_validation>(
        in_tool_tip,
        tool_tip_fragment);

      fragment->tool_tip.Set(
          tool_tip_fragment.is_null() ? nullptr : tool_tip_fragment.data());

      
      MOJO_INTERNAL_CHECK_SERIALIZATION(
        send_validation,
        !(fragment->tool_tip.is_null()),
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_NULL_POINTER,
        "null tool_tip in CustomContextMenuItem struct");

      
      mojo::internal::Serialize<::blink::mojom::CustomContextMenuItemType>(
        Traits::type(input),
        &fragment->type);

      fragment->action = Traits::action(input);

      decltype(Traits::feature_name(input)) in_feature_name = Traits::feature_name(input);
      mojo::internal::MessageFragment<
          typename decltype(fragment->feature_name)::BaseType> feature_name_fragment(
              fragment.message());
      
      mojo::internal::Serialize<::mojo_base::mojom::String16DataView, send_validation>(
        in_feature_name,
        feature_name_fragment);

      fragment->feature_name.Set(
          feature_name_fragment.is_null() ? nullptr : feature_name_fragment.data());

      
      MOJO_INTERNAL_CHECK_SERIALIZATION(
        send_validation,
        !(fragment->feature_name.is_null()),
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_NULL_POINTER,
        "null feature_name in CustomContextMenuItem struct");

      fragment->is_experimental_feature = Traits::is_experimental_feature(input);

      fragment->rtl = Traits::rtl(input);

      fragment->has_directional_override = Traits::has_directional_override(input);

      fragment->enabled = Traits::enabled(input);

      fragment->checked = Traits::checked(input);

      fragment->force_show_accelerator_for_item = Traits::force_show_accelerator_for_item(input);

      decltype(Traits::submenu(input)) in_submenu = Traits::submenu(input);
      mojo::internal::MessageFragment<
          typename decltype(fragment->submenu)::BaseType>
          submenu_fragment(fragment.message());
      constexpr const mojo::internal::ContainerValidateParams& submenu_validate_params =
          mojo::internal::GetArrayValidator<0, false, nullptr>();
      
      mojo::internal::Serialize<mojo::ArrayDataView<::blink::mojom::CustomContextMenuItemDataView>, send_validation>(
        in_submenu,
        submenu_fragment,
        &submenu_validate_params);

      fragment->submenu.Set(
          submenu_fragment.is_null() ? nullptr : submenu_fragment.data());

      
      MOJO_INTERNAL_CHECK_SERIALIZATION(
        send_validation,
        !(fragment->submenu.is_null()),
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_NULL_POINTER,
        "null submenu in CustomContextMenuItem struct");
  }
};

template <typename MaybeConstUserType, mojo::internal::SendValidation send_validation>
struct SendValidationSerializer<::blink::mojom::UntrustworthyContextMenuParamsDataView, MaybeConstUserType, send_validation> {
  using UserType = typename std::remove_const<MaybeConstUserType>::type;
  using Traits = StructTraits<::blink::mojom::UntrustworthyContextMenuParamsDataView, UserType>;
  static void Serialize(
      MaybeConstUserType& input,
      mojo::internal::MessageFragment<::blink::mojom::internal::UntrustworthyContextMenuParams_Data>& fragment) {
    if (CallIsNullIfExists<Traits>(input))
      return;
    fragment.Allocate();

      
      mojo::internal::Serialize<::blink::mojom::ContextMenuDataMediaType>(
        Traits::media_type(input),
        &fragment->media_type);

      fragment->x = Traits::x(input);

      fragment->y = Traits::y(input);

      decltype(Traits::link_url(input)) in_link_url = Traits::link_url(input);
      mojo::internal::MessageFragment<
          typename decltype(fragment->link_url)::BaseType> link_url_fragment(
              fragment.message());
      
      mojo::internal::Serialize<::url::mojom::UrlDataView, send_validation>(
        in_link_url,
        link_url_fragment);

      fragment->link_url.Set(
          link_url_fragment.is_null() ? nullptr : link_url_fragment.data());

      
      MOJO_INTERNAL_CHECK_SERIALIZATION(
        send_validation,
        !(fragment->link_url.is_null()),
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_NULL_POINTER,
        "null link_url in UntrustworthyContextMenuParams struct");

      decltype(Traits::link_text(input)) in_link_text = Traits::link_text(input);
      mojo::internal::MessageFragment<
          typename decltype(fragment->link_text)::BaseType> link_text_fragment(
              fragment.message());
      
      mojo::internal::Serialize<::mojo_base::mojom::BigString16DataView, send_validation>(
        in_link_text,
        link_text_fragment);

      fragment->link_text.Set(
          link_text_fragment.is_null() ? nullptr : link_text_fragment.data());

      
      MOJO_INTERNAL_CHECK_SERIALIZATION(
        send_validation,
        !(fragment->link_text.is_null()),
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_NULL_POINTER,
        "null link_text in UntrustworthyContextMenuParams struct");

      decltype(Traits::unfiltered_link_url(input)) in_unfiltered_link_url = Traits::unfiltered_link_url(input);
      mojo::internal::MessageFragment<
          typename decltype(fragment->unfiltered_link_url)::BaseType> unfiltered_link_url_fragment(
              fragment.message());
      
      mojo::internal::Serialize<::url::mojom::UrlDataView, send_validation>(
        in_unfiltered_link_url,
        unfiltered_link_url_fragment);

      fragment->unfiltered_link_url.Set(
          unfiltered_link_url_fragment.is_null() ? nullptr : unfiltered_link_url_fragment.data());

      
      MOJO_INTERNAL_CHECK_SERIALIZATION(
        send_validation,
        !(fragment->unfiltered_link_url.is_null()),
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_NULL_POINTER,
        "null unfiltered_link_url in UntrustworthyContextMenuParams struct");

      decltype(Traits::src_url(input)) in_src_url = Traits::src_url(input);
      mojo::internal::MessageFragment<
          typename decltype(fragment->src_url)::BaseType> src_url_fragment(
              fragment.message());
      
      mojo::internal::Serialize<::url::mojom::UrlDataView, send_validation>(
        in_src_url,
        src_url_fragment);

      fragment->src_url.Set(
          src_url_fragment.is_null() ? nullptr : src_url_fragment.data());

      
      MOJO_INTERNAL_CHECK_SERIALIZATION(
        send_validation,
        !(fragment->src_url.is_null()),
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_NULL_POINTER,
        "null src_url in UntrustworthyContextMenuParams struct");

      fragment->has_image_contents = Traits::has_image_contents(input);

      fragment->is_image_media_plugin_document = Traits::is_image_media_plugin_document(input);

      fragment->media_flags = Traits::media_flags(input);

      decltype(Traits::selection_text(input)) in_selection_text = Traits::selection_text(input);
      mojo::internal::MessageFragment<
          typename decltype(fragment->selection_text)::BaseType> selection_text_fragment(
              fragment.message());
      
      mojo::internal::Serialize<::mojo_base::mojom::BigString16DataView, send_validation>(
        in_selection_text,
        selection_text_fragment);

      fragment->selection_text.Set(
          selection_text_fragment.is_null() ? nullptr : selection_text_fragment.data());

      
      MOJO_INTERNAL_CHECK_SERIALIZATION(
        send_validation,
        !(fragment->selection_text.is_null()),
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_NULL_POINTER,
        "null selection_text in UntrustworthyContextMenuParams struct");

      decltype(Traits::title_text(input)) in_title_text = Traits::title_text(input);
      mojo::internal::MessageFragment<
          typename decltype(fragment->title_text)::BaseType> title_text_fragment(
              fragment.message());
      
      mojo::internal::Serialize<::mojo_base::mojom::BigString16DataView, send_validation>(
        in_title_text,
        title_text_fragment);

      fragment->title_text.Set(
          title_text_fragment.is_null() ? nullptr : title_text_fragment.data());

      
      MOJO_INTERNAL_CHECK_SERIALIZATION(
        send_validation,
        !(fragment->title_text.is_null()),
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_NULL_POINTER,
        "null title_text in UntrustworthyContextMenuParams struct");

      decltype(Traits::alt_text(input)) in_alt_text = Traits::alt_text(input);
      mojo::internal::MessageFragment<
          typename decltype(fragment->alt_text)::BaseType> alt_text_fragment(
              fragment.message());
      
      mojo::internal::Serialize<::mojo_base::mojom::BigString16DataView, send_validation>(
        in_alt_text,
        alt_text_fragment);

      fragment->alt_text.Set(
          alt_text_fragment.is_null() ? nullptr : alt_text_fragment.data());

      
      MOJO_INTERNAL_CHECK_SERIALIZATION(
        send_validation,
        !(fragment->alt_text.is_null()),
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_NULL_POINTER,
        "null alt_text in UntrustworthyContextMenuParams struct");

      decltype(Traits::suggested_filename(input)) in_suggested_filename = Traits::suggested_filename(input);
      mojo::internal::MessageFragment<
          typename decltype(fragment->suggested_filename)::BaseType> suggested_filename_fragment(
              fragment.message());
      
      mojo::internal::Serialize<::mojo_base::mojom::String16DataView, send_validation>(
        in_suggested_filename,
        suggested_filename_fragment);

      fragment->suggested_filename.Set(
          suggested_filename_fragment.is_null() ? nullptr : suggested_filename_fragment.data());

      
      MOJO_INTERNAL_CHECK_SERIALIZATION(
        send_validation,
        !(fragment->suggested_filename.is_null()),
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_NULL_POINTER,
        "null suggested_filename in UntrustworthyContextMenuParams struct");

      decltype(Traits::misspelled_word(input)) in_misspelled_word = Traits::misspelled_word(input);
      mojo::internal::MessageFragment<
          typename decltype(fragment->misspelled_word)::BaseType> misspelled_word_fragment(
              fragment.message());
      
      mojo::internal::Serialize<::mojo_base::mojom::String16DataView, send_validation>(
        in_misspelled_word,
        misspelled_word_fragment);

      fragment->misspelled_word.Set(
          misspelled_word_fragment.is_null() ? nullptr : misspelled_word_fragment.data());

      
      MOJO_INTERNAL_CHECK_SERIALIZATION(
        send_validation,
        !(fragment->misspelled_word.is_null()),
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_NULL_POINTER,
        "null misspelled_word in UntrustworthyContextMenuParams struct");

      decltype(Traits::dictionary_suggestions(input)) in_dictionary_suggestions = Traits::dictionary_suggestions(input);
      mojo::internal::MessageFragment<
          typename decltype(fragment->dictionary_suggestions)::BaseType>
          dictionary_suggestions_fragment(fragment.message());
      constexpr const mojo::internal::ContainerValidateParams& dictionary_suggestions_validate_params =
          mojo::internal::GetArrayValidator<0, false, nullptr>();
      
      mojo::internal::Serialize<mojo::ArrayDataView<::mojo_base::mojom::String16DataView>, send_validation>(
        in_dictionary_suggestions,
        dictionary_suggestions_fragment,
        &dictionary_suggestions_validate_params);

      fragment->dictionary_suggestions.Set(
          dictionary_suggestions_fragment.is_null() ? nullptr : dictionary_suggestions_fragment.data());

      
      MOJO_INTERNAL_CHECK_SERIALIZATION(
        send_validation,
        !(fragment->dictionary_suggestions.is_null()),
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_NULL_POINTER,
        "null dictionary_suggestions in UntrustworthyContextMenuParams struct");

      fragment->spellcheck_enabled = Traits::spellcheck_enabled(input);

      fragment->is_editable = Traits::is_editable(input);

      fragment->writing_direction_default = Traits::writing_direction_default(input);

      fragment->writing_direction_left_to_right = Traits::writing_direction_left_to_right(input);

      fragment->writing_direction_right_to_left = Traits::writing_direction_right_to_left(input);

      fragment->edit_flags = Traits::edit_flags(input);

      decltype(Traits::frame_charset(input)) in_frame_charset = Traits::frame_charset(input);
      mojo::internal::MessageFragment<
          typename decltype(fragment->frame_charset)::BaseType> frame_charset_fragment(
              fragment.message());
      
      mojo::internal::Serialize<mojo::StringDataView, send_validation>(
        in_frame_charset,
        frame_charset_fragment);

      fragment->frame_charset.Set(
          frame_charset_fragment.is_null() ? nullptr : frame_charset_fragment.data());

      
      MOJO_INTERNAL_CHECK_SERIALIZATION(
        send_validation,
        !(fragment->frame_charset.is_null()),
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_NULL_POINTER,
        "null frame_charset in UntrustworthyContextMenuParams struct");

      
      mojo::internal::Serialize<::network::mojom::ReferrerPolicy>(
        Traits::referrer_policy(input),
        &fragment->referrer_policy);

      decltype(Traits::link_followed(input)) in_link_followed = Traits::link_followed(input);
      mojo::internal::MessageFragment<
          typename decltype(fragment->link_followed)::BaseType> link_followed_fragment(
              fragment.message());
      
      mojo::internal::Serialize<::url::mojom::UrlDataView, send_validation>(
        in_link_followed,
        link_followed_fragment);

      fragment->link_followed.Set(
          link_followed_fragment.is_null() ? nullptr : link_followed_fragment.data());

      
      MOJO_INTERNAL_CHECK_SERIALIZATION(
        send_validation,
        !(fragment->link_followed.is_null()),
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_NULL_POINTER,
        "null link_followed in UntrustworthyContextMenuParams struct");

      decltype(Traits::custom_items(input)) in_custom_items = Traits::custom_items(input);
      mojo::internal::MessageFragment<
          typename decltype(fragment->custom_items)::BaseType>
          custom_items_fragment(fragment.message());
      constexpr const mojo::internal::ContainerValidateParams& custom_items_validate_params =
          mojo::internal::GetArrayValidator<0, false, nullptr>();
      
      mojo::internal::Serialize<mojo::ArrayDataView<::blink::mojom::CustomContextMenuItemDataView>, send_validation>(
        in_custom_items,
        custom_items_fragment,
        &custom_items_validate_params);

      fragment->custom_items.Set(
          custom_items_fragment.is_null() ? nullptr : custom_items_fragment.data());

      
      MOJO_INTERNAL_CHECK_SERIALIZATION(
        send_validation,
        !(fragment->custom_items.is_null()),
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_NULL_POINTER,
        "null custom_items in UntrustworthyContextMenuParams struct");

      
      mojo::internal::Serialize<::ui::mojom::MenuSourceType>(
        Traits::source_type(input),
        &fragment->source_type);

      decltype(Traits::selection_rect(input)) in_selection_rect = Traits::selection_rect(input);
      mojo::internal::MessageFragment<
          typename decltype(fragment->selection_rect)::BaseType> selection_rect_fragment(
              fragment.message());
      
      mojo::internal::Serialize<::gfx::mojom::RectDataView, send_validation>(
        in_selection_rect,
        selection_rect_fragment);

      fragment->selection_rect.Set(
          selection_rect_fragment.is_null() ? nullptr : selection_rect_fragment.data());

      
      MOJO_INTERNAL_CHECK_SERIALIZATION(
        send_validation,
        !(fragment->selection_rect.is_null()),
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_NULL_POINTER,
        "null selection_rect in UntrustworthyContextMenuParams struct");

      fragment->selection_start_offset = Traits::selection_start_offset(input);
      fragment->annotation_type_$flag = Traits::annotation_type(input).has_value();
      if (Traits::annotation_type(input).has_value()) {
        
        mojo::internal::Serialize<::blink::mojom::AnnotationType>(
          Traits::annotation_type(input).value(),
          &fragment->annotation_type_$value);
      } else {
        fragment->annotation_type_$value =
            static_cast<int32_t>(::blink::mojom::AnnotationType::kMinValue);
      }

      fragment->opened_from_interest_for = Traits::opened_from_interest_for(input);

      fragment->interest_for_node_id = Traits::interest_for_node_id(input);
      fragment->form_control_type_$flag = Traits::form_control_type(input).has_value();
      if (Traits::form_control_type(input).has_value()) {
        
        mojo::internal::Serialize<::blink::mojom::FormControlType>(
          Traits::form_control_type(input).value(),
          &fragment->form_control_type_$value);
      } else {
        fragment->form_control_type_$value =
            static_cast<int32_t>(::blink::mojom::FormControlType::kMinValue);
      }

      fragment->is_content_editable_for_autofill = Traits::is_content_editable_for_autofill(input);

      decltype(Traits::field_renderer_id(input)) in_field_renderer_id = Traits::field_renderer_id(input);
      mojo::internal::MessageFragment<
          typename decltype(fragment->field_renderer_id)::BaseType> field_renderer_id_fragment(
              fragment.message());
      
      mojo::internal::Serialize<::blink::mojom::DOMNodeIdDataView, send_validation>(
        in_field_renderer_id,
        field_renderer_id_fragment);

      fragment->field_renderer_id.Set(
          field_renderer_id_fragment.is_null() ? nullptr : field_renderer_id_fragment.data());

      
      MOJO_INTERNAL_CHECK_SERIALIZATION(
        send_validation,
        !(fragment->field_renderer_id.is_null()),
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_NULL_POINTER,
        "null field_renderer_id in UntrustworthyContextMenuParams struct");

      decltype(Traits::form_renderer_id(input)) in_form_renderer_id = Traits::form_renderer_id(input);
      mojo::internal::MessageFragment<
          typename decltype(fragment->form_renderer_id)::BaseType> form_renderer_id_fragment(
              fragment.message());
      
      mojo::internal::Serialize<::blink::mojom::DOMNodeIdDataView, send_validation>(
        in_form_renderer_id,
        form_renderer_id_fragment);

      fragment->form_renderer_id.Set(
          form_renderer_id_fragment.is_null() ? nullptr : form_renderer_id_fragment.data());

      
      MOJO_INTERNAL_CHECK_SERIALIZATION(
        send_validation,
        !(fragment->form_renderer_id.is_null()),
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_NULL_POINTER,
        "null form_renderer_id in UntrustworthyContextMenuParams struct");
  }
};

}  // namespace mojo::internal

#endif  // THIRD_PARTY_BLINK_PUBLIC_MOJOM_CONTEXT_MENU_CONTEXT_MENU_MOJOM_SEND_VALIDATION_H_