mainline/platform/sdk/include_gen/external/perfetto/perfetto_protos_perfetto_trace_track_event_zero_gen_headers/gen/external/perfetto/protos/perfetto/trace/track_event/track_event.pbzero.h

// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.

#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TRACK_EVENT_PROTO_H_
#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TRACK_EVENT_PROTO_H_

#include <stddef.h>
#include <stdint.h>

#include "perfetto/protozero/field_writer.h"
#include "perfetto/protozero/message.h"
#include "perfetto/protozero/packed_repeated_fields.h"
#include "perfetto/protozero/proto_decoder.h"
#include "perfetto/protozero/proto_utils.h"

namespace perfetto {
namespace protos {
namespace pbzero {

class ChromeApplicationStateInfo;
class ChromeCompositorSchedulerState;
class ChromeContentSettingsEventInfo;
class ChromeFrameReporter;
class ChromeHistogramSample;
class ChromeKeyedService;
class ChromeLatencyInfo;
class ChromeLegacyIpc;
class ChromeMessagePump;
class ChromeMojoEventInfo;
class ChromeRendererSchedulerState;
class ChromeUserEvent;
class ChromeWindowHandleEventInfo;
class DebugAnnotation;
class LogMessage;
class SourceLocation;
class TaskExecution;
class TrackEvent_LegacyEvent;
enum TrackEvent_LegacyEvent_FlowDirection : int32_t;
enum TrackEvent_LegacyEvent_InstantEventScope : int32_t;
enum TrackEvent_Type : int32_t;

enum TrackEvent_Type : int32_t {
  TrackEvent_Type_TYPE_UNSPECIFIED = 0,
  TrackEvent_Type_TYPE_SLICE_BEGIN = 1,
  TrackEvent_Type_TYPE_SLICE_END = 2,
  TrackEvent_Type_TYPE_INSTANT = 3,
  TrackEvent_Type_TYPE_COUNTER = 4,
};

const TrackEvent_Type TrackEvent_Type_MIN = TrackEvent_Type_TYPE_UNSPECIFIED;
const TrackEvent_Type TrackEvent_Type_MAX = TrackEvent_Type_TYPE_COUNTER;

enum TrackEvent_LegacyEvent_FlowDirection : int32_t {
  TrackEvent_LegacyEvent_FlowDirection_FLOW_UNSPECIFIED = 0,
  TrackEvent_LegacyEvent_FlowDirection_FLOW_IN = 1,
  TrackEvent_LegacyEvent_FlowDirection_FLOW_OUT = 2,
  TrackEvent_LegacyEvent_FlowDirection_FLOW_INOUT = 3,
};

const TrackEvent_LegacyEvent_FlowDirection TrackEvent_LegacyEvent_FlowDirection_MIN = TrackEvent_LegacyEvent_FlowDirection_FLOW_UNSPECIFIED;
const TrackEvent_LegacyEvent_FlowDirection TrackEvent_LegacyEvent_FlowDirection_MAX = TrackEvent_LegacyEvent_FlowDirection_FLOW_INOUT;

enum TrackEvent_LegacyEvent_InstantEventScope : int32_t {
  TrackEvent_LegacyEvent_InstantEventScope_SCOPE_UNSPECIFIED = 0,
  TrackEvent_LegacyEvent_InstantEventScope_SCOPE_GLOBAL = 1,
  TrackEvent_LegacyEvent_InstantEventScope_SCOPE_PROCESS = 2,
  TrackEvent_LegacyEvent_InstantEventScope_SCOPE_THREAD = 3,
};

const TrackEvent_LegacyEvent_InstantEventScope TrackEvent_LegacyEvent_InstantEventScope_MIN = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_UNSPECIFIED;
const TrackEvent_LegacyEvent_InstantEventScope TrackEvent_LegacyEvent_InstantEventScope_MAX = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_THREAD;

class EventName_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
 public:
  EventName_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
  explicit EventName_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
  explicit EventName_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
  bool has_iid() const { return at<1>().valid(); }
  uint64_t iid() const { return at<1>().as_uint64(); }
  bool has_name() const { return at<2>().valid(); }
  ::protozero::ConstChars name() const { return at<2>().as_string(); }
};

class EventName : public ::protozero::Message {
 public:
  using Decoder = EventName_Decoder;
  enum : int32_t {
    kIidFieldNumber = 1,
    kNameFieldNumber = 2,
  };

  using FieldMetadata_Iid =
    ::protozero::proto_utils::FieldMetadata<
      1,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kUint64,
      uint64_t,
      EventName>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_Iid kIid() { return {}; }
  void set_iid(uint64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_Iid::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kUint64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_Name =
    ::protozero::proto_utils::FieldMetadata<
      2,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kString,
      std::string,
      EventName>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_Name kName() { return {}; }
  void set_name(const char* data, size_t size) {
    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
  }
  void set_name(std::string value) {
    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kString>
        ::Append(*this, field_id, value);
  }
};

class EventCategory_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
 public:
  EventCategory_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
  explicit EventCategory_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
  explicit EventCategory_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
  bool has_iid() const { return at<1>().valid(); }
  uint64_t iid() const { return at<1>().as_uint64(); }
  bool has_name() const { return at<2>().valid(); }
  ::protozero::ConstChars name() const { return at<2>().as_string(); }
};

class EventCategory : public ::protozero::Message {
 public:
  using Decoder = EventCategory_Decoder;
  enum : int32_t {
    kIidFieldNumber = 1,
    kNameFieldNumber = 2,
  };

  using FieldMetadata_Iid =
    ::protozero::proto_utils::FieldMetadata<
      1,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kUint64,
      uint64_t,
      EventCategory>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_Iid kIid() { return {}; }
  void set_iid(uint64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_Iid::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kUint64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_Name =
    ::protozero::proto_utils::FieldMetadata<
      2,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kString,
      std::string,
      EventCategory>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_Name kName() { return {}; }
  void set_name(const char* data, size_t size) {
    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
  }
  void set_name(std::string value) {
    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kString>
        ::Append(*this, field_id, value);
  }
};

class TrackEventDefaults_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/45, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
 public:
  TrackEventDefaults_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
  explicit TrackEventDefaults_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
  explicit TrackEventDefaults_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
  bool has_track_uuid() const { return at<11>().valid(); }
  uint64_t track_uuid() const { return at<11>().as_uint64(); }
  bool has_extra_counter_track_uuids() const { return at<31>().valid(); }
  ::protozero::RepeatedFieldIterator<uint64_t> extra_counter_track_uuids() const { return GetRepeated<uint64_t>(31); }
  bool has_extra_double_counter_track_uuids() const { return at<45>().valid(); }
  ::protozero::RepeatedFieldIterator<uint64_t> extra_double_counter_track_uuids() const { return GetRepeated<uint64_t>(45); }
};

class TrackEventDefaults : public ::protozero::Message {
 public:
  using Decoder = TrackEventDefaults_Decoder;
  enum : int32_t {
    kTrackUuidFieldNumber = 11,
    kExtraCounterTrackUuidsFieldNumber = 31,
    kExtraDoubleCounterTrackUuidsFieldNumber = 45,
  };

  using FieldMetadata_TrackUuid =
    ::protozero::proto_utils::FieldMetadata<
      11,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kUint64,
      uint64_t,
      TrackEventDefaults>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_TrackUuid kTrackUuid() { return {}; }
  void set_track_uuid(uint64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_TrackUuid::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kUint64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_ExtraCounterTrackUuids =
    ::protozero::proto_utils::FieldMetadata<
      31,
      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
      ::protozero::proto_utils::ProtoSchemaType::kUint64,
      uint64_t,
      TrackEventDefaults>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ExtraCounterTrackUuids kExtraCounterTrackUuids() { return {}; }
  void add_extra_counter_track_uuids(uint64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_ExtraCounterTrackUuids::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kUint64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_ExtraDoubleCounterTrackUuids =
    ::protozero::proto_utils::FieldMetadata<
      45,
      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
      ::protozero::proto_utils::ProtoSchemaType::kUint64,
      uint64_t,
      TrackEventDefaults>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ExtraDoubleCounterTrackUuids kExtraDoubleCounterTrackUuids() { return {}; }
  void add_extra_double_counter_track_uuids(uint64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_ExtraDoubleCounterTrackUuids::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kUint64>
        ::Append(*this, field_id, value);
  }
};

class TrackEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/46, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
 public:
  TrackEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
  explicit TrackEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
  explicit TrackEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
  bool has_category_iids() const { return at<3>().valid(); }
  ::protozero::RepeatedFieldIterator<uint64_t> category_iids() const { return GetRepeated<uint64_t>(3); }
  bool has_categories() const { return at<22>().valid(); }
  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> categories() const { return GetRepeated<::protozero::ConstChars>(22); }
  bool has_name_iid() const { return at<10>().valid(); }
  uint64_t name_iid() const { return at<10>().as_uint64(); }
  bool has_name() const { return at<23>().valid(); }
  ::protozero::ConstChars name() const { return at<23>().as_string(); }
  bool has_type() const { return at<9>().valid(); }
  int32_t type() const { return at<9>().as_int32(); }
  bool has_track_uuid() const { return at<11>().valid(); }
  uint64_t track_uuid() const { return at<11>().as_uint64(); }
  bool has_counter_value() const { return at<30>().valid(); }
  int64_t counter_value() const { return at<30>().as_int64(); }
  bool has_double_counter_value() const { return at<44>().valid(); }
  double double_counter_value() const { return at<44>().as_double(); }
  bool has_extra_counter_track_uuids() const { return at<31>().valid(); }
  ::protozero::RepeatedFieldIterator<uint64_t> extra_counter_track_uuids() const { return GetRepeated<uint64_t>(31); }
  bool has_extra_counter_values() const { return at<12>().valid(); }
  ::protozero::RepeatedFieldIterator<int64_t> extra_counter_values() const { return GetRepeated<int64_t>(12); }
  bool has_extra_double_counter_track_uuids() const { return at<45>().valid(); }
  ::protozero::RepeatedFieldIterator<uint64_t> extra_double_counter_track_uuids() const { return GetRepeated<uint64_t>(45); }
  bool has_extra_double_counter_values() const { return at<46>().valid(); }
  ::protozero::RepeatedFieldIterator<double> extra_double_counter_values() const { return GetRepeated<double>(46); }
  bool has_flow_ids() const { return at<36>().valid(); }
  ::protozero::RepeatedFieldIterator<uint64_t> flow_ids() const { return GetRepeated<uint64_t>(36); }
  bool has_terminating_flow_ids() const { return at<42>().valid(); }
  ::protozero::RepeatedFieldIterator<uint64_t> terminating_flow_ids() const { return GetRepeated<uint64_t>(42); }
  bool has_debug_annotations() const { return at<4>().valid(); }
  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> debug_annotations() const { return GetRepeated<::protozero::ConstBytes>(4); }
  bool has_task_execution() const { return at<5>().valid(); }
  ::protozero::ConstBytes task_execution() const { return at<5>().as_bytes(); }
  bool has_log_message() const { return at<21>().valid(); }
  ::protozero::ConstBytes log_message() const { return at<21>().as_bytes(); }
  bool has_cc_scheduler_state() const { return at<24>().valid(); }
  ::protozero::ConstBytes cc_scheduler_state() const { return at<24>().as_bytes(); }
  bool has_chrome_user_event() const { return at<25>().valid(); }
  ::protozero::ConstBytes chrome_user_event() const { return at<25>().as_bytes(); }
  bool has_chrome_keyed_service() const { return at<26>().valid(); }
  ::protozero::ConstBytes chrome_keyed_service() const { return at<26>().as_bytes(); }
  bool has_chrome_legacy_ipc() const { return at<27>().valid(); }
  ::protozero::ConstBytes chrome_legacy_ipc() const { return at<27>().as_bytes(); }
  bool has_chrome_histogram_sample() const { return at<28>().valid(); }
  ::protozero::ConstBytes chrome_histogram_sample() const { return at<28>().as_bytes(); }
  bool has_chrome_latency_info() const { return at<29>().valid(); }
  ::protozero::ConstBytes chrome_latency_info() const { return at<29>().as_bytes(); }
  bool has_chrome_frame_reporter() const { return at<32>().valid(); }
  ::protozero::ConstBytes chrome_frame_reporter() const { return at<32>().as_bytes(); }
  bool has_chrome_application_state_info() const { return at<39>().valid(); }
  ::protozero::ConstBytes chrome_application_state_info() const { return at<39>().as_bytes(); }
  bool has_chrome_renderer_scheduler_state() const { return at<40>().valid(); }
  ::protozero::ConstBytes chrome_renderer_scheduler_state() const { return at<40>().as_bytes(); }
  bool has_chrome_window_handle_event_info() const { return at<41>().valid(); }
  ::protozero::ConstBytes chrome_window_handle_event_info() const { return at<41>().as_bytes(); }
  bool has_chrome_content_settings_event_info() const { return at<43>().valid(); }
  ::protozero::ConstBytes chrome_content_settings_event_info() const { return at<43>().as_bytes(); }
  bool has_source_location() const { return at<33>().valid(); }
  ::protozero::ConstBytes source_location() const { return at<33>().as_bytes(); }
  bool has_source_location_iid() const { return at<34>().valid(); }
  uint64_t source_location_iid() const { return at<34>().as_uint64(); }
  bool has_chrome_message_pump() const { return at<35>().valid(); }
  ::protozero::ConstBytes chrome_message_pump() const { return at<35>().as_bytes(); }
  bool has_chrome_mojo_event_info() const { return at<38>().valid(); }
  ::protozero::ConstBytes chrome_mojo_event_info() const { return at<38>().as_bytes(); }
  bool has_timestamp_delta_us() const { return at<1>().valid(); }
  int64_t timestamp_delta_us() const { return at<1>().as_int64(); }
  bool has_timestamp_absolute_us() const { return at<16>().valid(); }
  int64_t timestamp_absolute_us() const { return at<16>().as_int64(); }
  bool has_thread_time_delta_us() const { return at<2>().valid(); }
  int64_t thread_time_delta_us() const { return at<2>().as_int64(); }
  bool has_thread_time_absolute_us() const { return at<17>().valid(); }
  int64_t thread_time_absolute_us() const { return at<17>().as_int64(); }
  bool has_thread_instruction_count_delta() const { return at<8>().valid(); }
  int64_t thread_instruction_count_delta() const { return at<8>().as_int64(); }
  bool has_thread_instruction_count_absolute() const { return at<20>().valid(); }
  int64_t thread_instruction_count_absolute() const { return at<20>().as_int64(); }
  bool has_legacy_event() const { return at<6>().valid(); }
  ::protozero::ConstBytes legacy_event() const { return at<6>().as_bytes(); }
};

class TrackEvent : public ::protozero::Message {
 public:
  using Decoder = TrackEvent_Decoder;
  enum : int32_t {
    kCategoryIidsFieldNumber = 3,
    kCategoriesFieldNumber = 22,
    kNameIidFieldNumber = 10,
    kNameFieldNumber = 23,
    kTypeFieldNumber = 9,
    kTrackUuidFieldNumber = 11,
    kCounterValueFieldNumber = 30,
    kDoubleCounterValueFieldNumber = 44,
    kExtraCounterTrackUuidsFieldNumber = 31,
    kExtraCounterValuesFieldNumber = 12,
    kExtraDoubleCounterTrackUuidsFieldNumber = 45,
    kExtraDoubleCounterValuesFieldNumber = 46,
    kFlowIdsFieldNumber = 36,
    kTerminatingFlowIdsFieldNumber = 42,
    kDebugAnnotationsFieldNumber = 4,
    kTaskExecutionFieldNumber = 5,
    kLogMessageFieldNumber = 21,
    kCcSchedulerStateFieldNumber = 24,
    kChromeUserEventFieldNumber = 25,
    kChromeKeyedServiceFieldNumber = 26,
    kChromeLegacyIpcFieldNumber = 27,
    kChromeHistogramSampleFieldNumber = 28,
    kChromeLatencyInfoFieldNumber = 29,
    kChromeFrameReporterFieldNumber = 32,
    kChromeApplicationStateInfoFieldNumber = 39,
    kChromeRendererSchedulerStateFieldNumber = 40,
    kChromeWindowHandleEventInfoFieldNumber = 41,
    kChromeContentSettingsEventInfoFieldNumber = 43,
    kSourceLocationFieldNumber = 33,
    kSourceLocationIidFieldNumber = 34,
    kChromeMessagePumpFieldNumber = 35,
    kChromeMojoEventInfoFieldNumber = 38,
    kTimestampDeltaUsFieldNumber = 1,
    kTimestampAbsoluteUsFieldNumber = 16,
    kThreadTimeDeltaUsFieldNumber = 2,
    kThreadTimeAbsoluteUsFieldNumber = 17,
    kThreadInstructionCountDeltaFieldNumber = 8,
    kThreadInstructionCountAbsoluteFieldNumber = 20,
    kLegacyEventFieldNumber = 6,
  };
  using LegacyEvent = ::perfetto::protos::pbzero::TrackEvent_LegacyEvent;
  using Type = ::perfetto::protos::pbzero::TrackEvent_Type;
  static const Type TYPE_UNSPECIFIED = TrackEvent_Type_TYPE_UNSPECIFIED;
  static const Type TYPE_SLICE_BEGIN = TrackEvent_Type_TYPE_SLICE_BEGIN;
  static const Type TYPE_SLICE_END = TrackEvent_Type_TYPE_SLICE_END;
  static const Type TYPE_INSTANT = TrackEvent_Type_TYPE_INSTANT;
  static const Type TYPE_COUNTER = TrackEvent_Type_TYPE_COUNTER;

  using FieldMetadata_CategoryIids =
    ::protozero::proto_utils::FieldMetadata<
      3,
      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
      ::protozero::proto_utils::ProtoSchemaType::kUint64,
      uint64_t,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_CategoryIids kCategoryIids() { return {}; }
  void add_category_iids(uint64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_CategoryIids::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kUint64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_Categories =
    ::protozero::proto_utils::FieldMetadata<
      22,
      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
      ::protozero::proto_utils::ProtoSchemaType::kString,
      std::string,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_Categories kCategories() { return {}; }
  void add_categories(const char* data, size_t size) {
    AppendBytes(FieldMetadata_Categories::kFieldId, data, size);
  }
  void add_categories(std::string value) {
    static constexpr uint32_t field_id = FieldMetadata_Categories::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kString>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_NameIid =
    ::protozero::proto_utils::FieldMetadata<
      10,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kUint64,
      uint64_t,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_NameIid kNameIid() { return {}; }
  void set_name_iid(uint64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_NameIid::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kUint64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_Name =
    ::protozero::proto_utils::FieldMetadata<
      23,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kString,
      std::string,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_Name kName() { return {}; }
  void set_name(const char* data, size_t size) {
    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
  }
  void set_name(std::string value) {
    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kString>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_Type =
    ::protozero::proto_utils::FieldMetadata<
      9,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kEnum,
      ::perfetto::protos::pbzero::TrackEvent_Type,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_Type kType() { return {}; }
  void set_type(::perfetto::protos::pbzero::TrackEvent_Type value) {
    static constexpr uint32_t field_id = FieldMetadata_Type::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kEnum>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_TrackUuid =
    ::protozero::proto_utils::FieldMetadata<
      11,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kUint64,
      uint64_t,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_TrackUuid kTrackUuid() { return {}; }
  void set_track_uuid(uint64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_TrackUuid::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kUint64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_CounterValue =
    ::protozero::proto_utils::FieldMetadata<
      30,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_CounterValue kCounterValue() { return {}; }
  void set_counter_value(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_CounterValue::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_DoubleCounterValue =
    ::protozero::proto_utils::FieldMetadata<
      44,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kDouble,
      double,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_DoubleCounterValue kDoubleCounterValue() { return {}; }
  void set_double_counter_value(double value) {
    static constexpr uint32_t field_id = FieldMetadata_DoubleCounterValue::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kDouble>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_ExtraCounterTrackUuids =
    ::protozero::proto_utils::FieldMetadata<
      31,
      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
      ::protozero::proto_utils::ProtoSchemaType::kUint64,
      uint64_t,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ExtraCounterTrackUuids kExtraCounterTrackUuids() { return {}; }
  void add_extra_counter_track_uuids(uint64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_ExtraCounterTrackUuids::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kUint64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_ExtraCounterValues =
    ::protozero::proto_utils::FieldMetadata<
      12,
      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ExtraCounterValues kExtraCounterValues() { return {}; }
  void add_extra_counter_values(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_ExtraCounterValues::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_ExtraDoubleCounterTrackUuids =
    ::protozero::proto_utils::FieldMetadata<
      45,
      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
      ::protozero::proto_utils::ProtoSchemaType::kUint64,
      uint64_t,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ExtraDoubleCounterTrackUuids kExtraDoubleCounterTrackUuids() { return {}; }
  void add_extra_double_counter_track_uuids(uint64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_ExtraDoubleCounterTrackUuids::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kUint64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_ExtraDoubleCounterValues =
    ::protozero::proto_utils::FieldMetadata<
      46,
      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
      ::protozero::proto_utils::ProtoSchemaType::kDouble,
      double,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ExtraDoubleCounterValues kExtraDoubleCounterValues() { return {}; }
  void add_extra_double_counter_values(double value) {
    static constexpr uint32_t field_id = FieldMetadata_ExtraDoubleCounterValues::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kDouble>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_FlowIds =
    ::protozero::proto_utils::FieldMetadata<
      36,
      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
      ::protozero::proto_utils::ProtoSchemaType::kUint64,
      uint64_t,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_FlowIds kFlowIds() { return {}; }
  void add_flow_ids(uint64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_FlowIds::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kUint64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_TerminatingFlowIds =
    ::protozero::proto_utils::FieldMetadata<
      42,
      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
      ::protozero::proto_utils::ProtoSchemaType::kUint64,
      uint64_t,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_TerminatingFlowIds kTerminatingFlowIds() { return {}; }
  void add_terminating_flow_ids(uint64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_TerminatingFlowIds::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kUint64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_DebugAnnotations =
    ::protozero::proto_utils::FieldMetadata<
      4,
      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      DebugAnnotation,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_DebugAnnotations kDebugAnnotations() { return {}; }
  template <typename T = DebugAnnotation> T* add_debug_annotations() {
    return BeginNestedMessage<T>(4);
  }


  using FieldMetadata_TaskExecution =
    ::protozero::proto_utils::FieldMetadata<
      5,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      TaskExecution,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_TaskExecution kTaskExecution() { return {}; }
  template <typename T = TaskExecution> T* set_task_execution() {
    return BeginNestedMessage<T>(5);
  }


  using FieldMetadata_LogMessage =
    ::protozero::proto_utils::FieldMetadata<
      21,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      LogMessage,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_LogMessage kLogMessage() { return {}; }
  template <typename T = LogMessage> T* set_log_message() {
    return BeginNestedMessage<T>(21);
  }


  using FieldMetadata_CcSchedulerState =
    ::protozero::proto_utils::FieldMetadata<
      24,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      ChromeCompositorSchedulerState,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_CcSchedulerState kCcSchedulerState() { return {}; }
  template <typename T = ChromeCompositorSchedulerState> T* set_cc_scheduler_state() {
    return BeginNestedMessage<T>(24);
  }


  using FieldMetadata_ChromeUserEvent =
    ::protozero::proto_utils::FieldMetadata<
      25,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      ChromeUserEvent,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ChromeUserEvent kChromeUserEvent() { return {}; }
  template <typename T = ChromeUserEvent> T* set_chrome_user_event() {
    return BeginNestedMessage<T>(25);
  }


  using FieldMetadata_ChromeKeyedService =
    ::protozero::proto_utils::FieldMetadata<
      26,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      ChromeKeyedService,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ChromeKeyedService kChromeKeyedService() { return {}; }
  template <typename T = ChromeKeyedService> T* set_chrome_keyed_service() {
    return BeginNestedMessage<T>(26);
  }


  using FieldMetadata_ChromeLegacyIpc =
    ::protozero::proto_utils::FieldMetadata<
      27,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      ChromeLegacyIpc,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ChromeLegacyIpc kChromeLegacyIpc() { return {}; }
  template <typename T = ChromeLegacyIpc> T* set_chrome_legacy_ipc() {
    return BeginNestedMessage<T>(27);
  }


  using FieldMetadata_ChromeHistogramSample =
    ::protozero::proto_utils::FieldMetadata<
      28,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      ChromeHistogramSample,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ChromeHistogramSample kChromeHistogramSample() { return {}; }
  template <typename T = ChromeHistogramSample> T* set_chrome_histogram_sample() {
    return BeginNestedMessage<T>(28);
  }


  using FieldMetadata_ChromeLatencyInfo =
    ::protozero::proto_utils::FieldMetadata<
      29,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      ChromeLatencyInfo,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ChromeLatencyInfo kChromeLatencyInfo() { return {}; }
  template <typename T = ChromeLatencyInfo> T* set_chrome_latency_info() {
    return BeginNestedMessage<T>(29);
  }


  using FieldMetadata_ChromeFrameReporter =
    ::protozero::proto_utils::FieldMetadata<
      32,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      ChromeFrameReporter,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ChromeFrameReporter kChromeFrameReporter() { return {}; }
  template <typename T = ChromeFrameReporter> T* set_chrome_frame_reporter() {
    return BeginNestedMessage<T>(32);
  }


  using FieldMetadata_ChromeApplicationStateInfo =
    ::protozero::proto_utils::FieldMetadata<
      39,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      ChromeApplicationStateInfo,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ChromeApplicationStateInfo kChromeApplicationStateInfo() { return {}; }
  template <typename T = ChromeApplicationStateInfo> T* set_chrome_application_state_info() {
    return BeginNestedMessage<T>(39);
  }


  using FieldMetadata_ChromeRendererSchedulerState =
    ::protozero::proto_utils::FieldMetadata<
      40,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      ChromeRendererSchedulerState,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ChromeRendererSchedulerState kChromeRendererSchedulerState() { return {}; }
  template <typename T = ChromeRendererSchedulerState> T* set_chrome_renderer_scheduler_state() {
    return BeginNestedMessage<T>(40);
  }


  using FieldMetadata_ChromeWindowHandleEventInfo =
    ::protozero::proto_utils::FieldMetadata<
      41,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      ChromeWindowHandleEventInfo,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ChromeWindowHandleEventInfo kChromeWindowHandleEventInfo() { return {}; }
  template <typename T = ChromeWindowHandleEventInfo> T* set_chrome_window_handle_event_info() {
    return BeginNestedMessage<T>(41);
  }


  using FieldMetadata_ChromeContentSettingsEventInfo =
    ::protozero::proto_utils::FieldMetadata<
      43,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      ChromeContentSettingsEventInfo,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ChromeContentSettingsEventInfo kChromeContentSettingsEventInfo() { return {}; }
  template <typename T = ChromeContentSettingsEventInfo> T* set_chrome_content_settings_event_info() {
    return BeginNestedMessage<T>(43);
  }


  using FieldMetadata_SourceLocation =
    ::protozero::proto_utils::FieldMetadata<
      33,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      SourceLocation,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_SourceLocation kSourceLocation() { return {}; }
  template <typename T = SourceLocation> T* set_source_location() {
    return BeginNestedMessage<T>(33);
  }


  using FieldMetadata_SourceLocationIid =
    ::protozero::proto_utils::FieldMetadata<
      34,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kUint64,
      uint64_t,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_SourceLocationIid kSourceLocationIid() { return {}; }
  void set_source_location_iid(uint64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_SourceLocationIid::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kUint64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_ChromeMessagePump =
    ::protozero::proto_utils::FieldMetadata<
      35,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      ChromeMessagePump,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ChromeMessagePump kChromeMessagePump() { return {}; }
  template <typename T = ChromeMessagePump> T* set_chrome_message_pump() {
    return BeginNestedMessage<T>(35);
  }


  using FieldMetadata_ChromeMojoEventInfo =
    ::protozero::proto_utils::FieldMetadata<
      38,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      ChromeMojoEventInfo,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ChromeMojoEventInfo kChromeMojoEventInfo() { return {}; }
  template <typename T = ChromeMojoEventInfo> T* set_chrome_mojo_event_info() {
    return BeginNestedMessage<T>(38);
  }


  using FieldMetadata_TimestampDeltaUs =
    ::protozero::proto_utils::FieldMetadata<
      1,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_TimestampDeltaUs kTimestampDeltaUs() { return {}; }
  void set_timestamp_delta_us(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_TimestampDeltaUs::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_TimestampAbsoluteUs =
    ::protozero::proto_utils::FieldMetadata<
      16,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_TimestampAbsoluteUs kTimestampAbsoluteUs() { return {}; }
  void set_timestamp_absolute_us(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_TimestampAbsoluteUs::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_ThreadTimeDeltaUs =
    ::protozero::proto_utils::FieldMetadata<
      2,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ThreadTimeDeltaUs kThreadTimeDeltaUs() { return {}; }
  void set_thread_time_delta_us(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_ThreadTimeDeltaUs::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_ThreadTimeAbsoluteUs =
    ::protozero::proto_utils::FieldMetadata<
      17,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ThreadTimeAbsoluteUs kThreadTimeAbsoluteUs() { return {}; }
  void set_thread_time_absolute_us(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_ThreadTimeAbsoluteUs::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_ThreadInstructionCountDelta =
    ::protozero::proto_utils::FieldMetadata<
      8,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ThreadInstructionCountDelta kThreadInstructionCountDelta() { return {}; }
  void set_thread_instruction_count_delta(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_ThreadInstructionCountDelta::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_ThreadInstructionCountAbsolute =
    ::protozero::proto_utils::FieldMetadata<
      20,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ThreadInstructionCountAbsolute kThreadInstructionCountAbsolute() { return {}; }
  void set_thread_instruction_count_absolute(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_ThreadInstructionCountAbsolute::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_LegacyEvent =
    ::protozero::proto_utils::FieldMetadata<
      6,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      TrackEvent_LegacyEvent,
      TrackEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_LegacyEvent kLegacyEvent() { return {}; }
  template <typename T = TrackEvent_LegacyEvent> T* set_legacy_event() {
    return BeginNestedMessage<T>(6);
  }

};

class TrackEvent_LegacyEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/19, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
 public:
  TrackEvent_LegacyEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
  explicit TrackEvent_LegacyEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
  explicit TrackEvent_LegacyEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
  bool has_name_iid() const { return at<1>().valid(); }
  uint64_t name_iid() const { return at<1>().as_uint64(); }
  bool has_phase() const { return at<2>().valid(); }
  int32_t phase() const { return at<2>().as_int32(); }
  bool has_duration_us() const { return at<3>().valid(); }
  int64_t duration_us() const { return at<3>().as_int64(); }
  bool has_thread_duration_us() const { return at<4>().valid(); }
  int64_t thread_duration_us() const { return at<4>().as_int64(); }
  bool has_thread_instruction_delta() const { return at<15>().valid(); }
  int64_t thread_instruction_delta() const { return at<15>().as_int64(); }
  bool has_unscoped_id() const { return at<6>().valid(); }
  uint64_t unscoped_id() const { return at<6>().as_uint64(); }
  bool has_local_id() const { return at<10>().valid(); }
  uint64_t local_id() const { return at<10>().as_uint64(); }
  bool has_global_id() const { return at<11>().valid(); }
  uint64_t global_id() const { return at<11>().as_uint64(); }
  bool has_id_scope() const { return at<7>().valid(); }
  ::protozero::ConstChars id_scope() const { return at<7>().as_string(); }
  bool has_use_async_tts() const { return at<9>().valid(); }
  bool use_async_tts() const { return at<9>().as_bool(); }
  bool has_bind_id() const { return at<8>().valid(); }
  uint64_t bind_id() const { return at<8>().as_uint64(); }
  bool has_bind_to_enclosing() const { return at<12>().valid(); }
  bool bind_to_enclosing() const { return at<12>().as_bool(); }
  bool has_flow_direction() const { return at<13>().valid(); }
  int32_t flow_direction() const { return at<13>().as_int32(); }
  bool has_instant_event_scope() const { return at<14>().valid(); }
  int32_t instant_event_scope() const { return at<14>().as_int32(); }
  bool has_pid_override() const { return at<18>().valid(); }
  int32_t pid_override() const { return at<18>().as_int32(); }
  bool has_tid_override() const { return at<19>().valid(); }
  int32_t tid_override() const { return at<19>().as_int32(); }
};

class TrackEvent_LegacyEvent : public ::protozero::Message {
 public:
  using Decoder = TrackEvent_LegacyEvent_Decoder;
  enum : int32_t {
    kNameIidFieldNumber = 1,
    kPhaseFieldNumber = 2,
    kDurationUsFieldNumber = 3,
    kThreadDurationUsFieldNumber = 4,
    kThreadInstructionDeltaFieldNumber = 15,
    kUnscopedIdFieldNumber = 6,
    kLocalIdFieldNumber = 10,
    kGlobalIdFieldNumber = 11,
    kIdScopeFieldNumber = 7,
    kUseAsyncTtsFieldNumber = 9,
    kBindIdFieldNumber = 8,
    kBindToEnclosingFieldNumber = 12,
    kFlowDirectionFieldNumber = 13,
    kInstantEventScopeFieldNumber = 14,
    kPidOverrideFieldNumber = 18,
    kTidOverrideFieldNumber = 19,
  };
  using FlowDirection = ::perfetto::protos::pbzero::TrackEvent_LegacyEvent_FlowDirection;
  using InstantEventScope = ::perfetto::protos::pbzero::TrackEvent_LegacyEvent_InstantEventScope;
  static const FlowDirection FLOW_UNSPECIFIED = TrackEvent_LegacyEvent_FlowDirection_FLOW_UNSPECIFIED;
  static const FlowDirection FLOW_IN = TrackEvent_LegacyEvent_FlowDirection_FLOW_IN;
  static const FlowDirection FLOW_OUT = TrackEvent_LegacyEvent_FlowDirection_FLOW_OUT;
  static const FlowDirection FLOW_INOUT = TrackEvent_LegacyEvent_FlowDirection_FLOW_INOUT;
  static const InstantEventScope SCOPE_UNSPECIFIED = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_UNSPECIFIED;
  static const InstantEventScope SCOPE_GLOBAL = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_GLOBAL;
  static const InstantEventScope SCOPE_PROCESS = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_PROCESS;
  static const InstantEventScope SCOPE_THREAD = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_THREAD;

  using FieldMetadata_NameIid =
    ::protozero::proto_utils::FieldMetadata<
      1,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kUint64,
      uint64_t,
      TrackEvent_LegacyEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_NameIid kNameIid() { return {}; }
  void set_name_iid(uint64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_NameIid::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kUint64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_Phase =
    ::protozero::proto_utils::FieldMetadata<
      2,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt32,
      int32_t,
      TrackEvent_LegacyEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_Phase kPhase() { return {}; }
  void set_phase(int32_t value) {
    static constexpr uint32_t field_id = FieldMetadata_Phase::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt32>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_DurationUs =
    ::protozero::proto_utils::FieldMetadata<
      3,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      TrackEvent_LegacyEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_DurationUs kDurationUs() { return {}; }
  void set_duration_us(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_DurationUs::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_ThreadDurationUs =
    ::protozero::proto_utils::FieldMetadata<
      4,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      TrackEvent_LegacyEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ThreadDurationUs kThreadDurationUs() { return {}; }
  void set_thread_duration_us(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_ThreadDurationUs::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_ThreadInstructionDelta =
    ::protozero::proto_utils::FieldMetadata<
      15,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      TrackEvent_LegacyEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ThreadInstructionDelta kThreadInstructionDelta() { return {}; }
  void set_thread_instruction_delta(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_ThreadInstructionDelta::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_UnscopedId =
    ::protozero::proto_utils::FieldMetadata<
      6,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kUint64,
      uint64_t,
      TrackEvent_LegacyEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_UnscopedId kUnscopedId() { return {}; }
  void set_unscoped_id(uint64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_UnscopedId::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kUint64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_LocalId =
    ::protozero::proto_utils::FieldMetadata<
      10,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kUint64,
      uint64_t,
      TrackEvent_LegacyEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_LocalId kLocalId() { return {}; }
  void set_local_id(uint64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_LocalId::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kUint64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_GlobalId =
    ::protozero::proto_utils::FieldMetadata<
      11,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kUint64,
      uint64_t,
      TrackEvent_LegacyEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_GlobalId kGlobalId() { return {}; }
  void set_global_id(uint64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_GlobalId::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kUint64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_IdScope =
    ::protozero::proto_utils::FieldMetadata<
      7,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kString,
      std::string,
      TrackEvent_LegacyEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_IdScope kIdScope() { return {}; }
  void set_id_scope(const char* data, size_t size) {
    AppendBytes(FieldMetadata_IdScope::kFieldId, data, size);
  }
  void set_id_scope(std::string value) {
    static constexpr uint32_t field_id = FieldMetadata_IdScope::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kString>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_UseAsyncTts =
    ::protozero::proto_utils::FieldMetadata<
      9,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      TrackEvent_LegacyEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_UseAsyncTts kUseAsyncTts() { return {}; }
  void set_use_async_tts(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_UseAsyncTts::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_BindId =
    ::protozero::proto_utils::FieldMetadata<
      8,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kUint64,
      uint64_t,
      TrackEvent_LegacyEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_BindId kBindId() { return {}; }
  void set_bind_id(uint64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_BindId::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kUint64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_BindToEnclosing =
    ::protozero::proto_utils::FieldMetadata<
      12,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      TrackEvent_LegacyEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_BindToEnclosing kBindToEnclosing() { return {}; }
  void set_bind_to_enclosing(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_BindToEnclosing::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_FlowDirection =
    ::protozero::proto_utils::FieldMetadata<
      13,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kEnum,
      ::perfetto::protos::pbzero::TrackEvent_LegacyEvent_FlowDirection,
      TrackEvent_LegacyEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_FlowDirection kFlowDirection() { return {}; }
  void set_flow_direction(::perfetto::protos::pbzero::TrackEvent_LegacyEvent_FlowDirection value) {
    static constexpr uint32_t field_id = FieldMetadata_FlowDirection::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kEnum>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_InstantEventScope =
    ::protozero::proto_utils::FieldMetadata<
      14,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kEnum,
      ::perfetto::protos::pbzero::TrackEvent_LegacyEvent_InstantEventScope,
      TrackEvent_LegacyEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_InstantEventScope kInstantEventScope() { return {}; }
  void set_instant_event_scope(::perfetto::protos::pbzero::TrackEvent_LegacyEvent_InstantEventScope value) {
    static constexpr uint32_t field_id = FieldMetadata_InstantEventScope::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kEnum>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_PidOverride =
    ::protozero::proto_utils::FieldMetadata<
      18,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt32,
      int32_t,
      TrackEvent_LegacyEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_PidOverride kPidOverride() { return {}; }
  void set_pid_override(int32_t value) {
    static constexpr uint32_t field_id = FieldMetadata_PidOverride::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt32>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_TidOverride =
    ::protozero::proto_utils::FieldMetadata<
      19,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt32,
      int32_t,
      TrackEvent_LegacyEvent>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_TidOverride kTidOverride() { return {}; }
  void set_tid_override(int32_t value) {
    static constexpr uint32_t field_id = FieldMetadata_TidOverride::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt32>
        ::Append(*this, field_id, value);
  }
};

} // Namespace.
} // Namespace.
} // Namespace.
#endif  // Include guard.