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// Protocol version: v.162
// Copyright 2019 Google Inc. All Rights Reserved.

syntax = "proto2";
package com.google.protos.adx;
option java_outer_classname = "NetworkBid";

// This is the message that Google uses to request bids. A BidRequest
// includes the ad slot from a single impression.
//
message BidRequest {
  // Unique request id generated by Google. This is 16 bytes long.
  required bytes id = 2;

  // -----------------------------------------------------------
  // This section lists information that we know about the user.

  // The first 3 bytes of the IP address in network byte order for IPv4, or the
  // first 6 bytes for IPv6. Note that the number and position of the bytes
  // included from IPv6 addresses may change later.
  optional bytes ip = 4;

  // Reasons for special treatment of user data (google_user_id,
  // hosted_match_data, IDFA, etc).
  enum UserDataTreatment {
    // The current request should be treated as child-directed for purposes of
    // the Children's Online Privacy Protection Act. See
    // https://support.google.com/admanager/answer/4442399 for more information.
    TAG_FOR_CHILD_DIRECTED_TREATMENT = 0;
  }

  // When set, the user's cookie/id data allows only restricted usage and is not
  // available in the usual fields.
  // The impacted fields are:
  //  * google_user_id
  //  * hosted_match_data
  //  * mobile.encrypted_advertising_id
  //  * mobile.encrypted_hashed_idfa
  repeated UserDataTreatment user_data_treatment = 49;

  // The Google ID for the user as described in the documentation for the cookie
  // matching service. This field is the unpadded web-safe base64 encoded
  // version of a binary cookie id. See the "Base 64 Encoding with URL and
  // Filename Safe Alphabet" section in RFC 3548 for encoding details. This
  // field is the same as the Google ID returned by the cookie matching service.
  // Not set if there is one or more user_data_treatment value.
  optional string google_user_id = 21;

  // The version number of the google_user_id. We may sometimes change the
  // mapping from cookie to google_user_id. In this case the version will be
  // incremented.
  optional uint32 cookie_version = 20;

  // The time in seconds since the google_user_id was created.
  // This number may be quantized.
  optional int32 cookie_age_seconds = 31;

  // Match data stored for this google_user_id through the cookie matching
  // service. If a match exists, then this field holds the decoded data that
  // was passed in the google_hm parameter.
  // Not set if there is one or more user_data_treatment value.
  optional bytes hosted_match_data = 37;

  // A string that identifies the browser and type of device that sent the
  // request. Certain data may be redacted or replaced.
  optional string user_agent = 6;

  // The billing address country of the publisher. This may be different from
  // the detected country of the user in geo_criteria_id or the hosting country
  // of the website. For a complete list of country codes, please refer to
  // https://developers.google.com/adwords/api/docs/appendix/codes-formats#country-codes
  optional string publisher_country = 55;

  // Location of the end user. Uses a subset of the codes used in the AdWords
  // API. See the geo-table.csv table in the technical documentation for a list
  // of ids. The geo_criteria_id field replaces the deprecated country, region,
  // city, and metro fields.
  optional int32 geo_criteria_id = 39;

  // Detected postal code of the appropriate type for the country of the end
  // user (e.g. zip code if the country is "US"). The postal_code_prefix field
  // is set when accuracy is too low to imply a full code, otherwise the
  // postal_code field is set.
  optional string postal_code = 33;
  optional string postal_code_prefix = 34;

  // A hyperlocal targeting location when available.
  //
  message Hyperlocal {
    // A location on the Earth's surface.
    //
    message Point {
      optional float latitude = 1;
      optional float longitude = 2;
    }

    // The mobile device can be at any point inside the geofence polygon defined
    // by a list of corners. Currently, the polygon is always a parallelogram
    // with 4 corners.
    repeated Point corners = 1;
  }

  message HyperlocalSet {
    // This field currently contains at most one hyperlocal polygon.
    repeated Hyperlocal hyperlocal = 1;

    // The approximate geometric center of the geofence area. It is calculated
    // exclusively based on the geometric shape of the geofence area and in no
    // way indicates the mobile device's actual location within the geofence
    // area. If multiple hyperlocal polygons are specified above then
    // center_point is the geometric center of all hyperlocal polygons.
    optional Hyperlocal.Point center_point = 2;
  }

  // Hyperlocal targeting signal when available, encrypted as described at
  // https://developers.google.com/authorized-buyers/rtb/response-guide/decrypt-hyperlocal
  optional bytes encrypted_hyperlocal_set = 40;
  // Unencrypted version of encrypted_hyperlocal_set. This field is only set
  // when using an SSL connection.
  optional HyperlocalSet hyperlocal_set = 53;

  // The offset of the user's time from GMT in minutes. For example, GMT+10 is
  // timezone_offset = 600.
  optional int32 timezone_offset = 25;

  // List of detected user verticals. Currently unused.
  repeated int32 user_vertical = 30 [
      packed=true
  ];

  // This field is not populated by default. We recommend that bidders instead
  // store and look up list ids using either google_user_id or hosted_match_data
  // as keys.
  //
  message UserList {
    // The user list id.
    optional int64 id = 1;

    // The time in seconds since the user was added to the list.
    optional int32 age_seconds = 2;
  }
  repeated UserList user_list = 32;

  // -----------------------------------------------------------
  // This section lists information that we know about the web page or mobile
  // application where the impression originates.

  // The publisher ID as defined by the publisher code suffix of
  // the web property code. For instance, "pub-123" is the publisher code of web
  // property code "ca-pub-123" (ca- is the product specific prefix of the web
  // property).
  optional string publisher_id = 56;

  // The seller network id. See seller-network-ids.txt file in the technical
  // documentation for a list of ids. This is only set if the site is not
  // anonymous and the publisher allows site targeting.
  optional int32 seller_network_id = 41;

  // Id for the partner that provides this inventory. This is only set when
  // seller_network_id is also set and further partner information beyond the
  // seller_network_id is also available. The value of the partner_id is not
  // meaningful beyond providing a stable identifier.
  optional fixed64 partner_id = 52;

  // The URL of the page with parameters removed. This is only set if the site
  // is not anonymous and the publisher allows site targeting. You can use
  // anonymous_id for targeting if the inventory is anonymous. Otherwise, use
  // detected_vertical's. Only one of url or anonymous_id is ever set in the
  // same request. This always starts with a protocol (either http or https).
  optional string url = 11;

  // An id for the domain of the page. This is set when the inventory is
  // anonymous. Only one of url or anonymous_id is ever set in the same
  // request.
  optional string anonymous_id = 19;

  // Detected user languages, based on the language of the web page, the browser
  // settings, and other signals. The order is arbitrary. The codes are 2 or 5
  // characters and are documented at
  // https://developers.google.com/adwords/api/docs/appendix/languagecodes
  repeated string detected_language = 12;

  // One or more detected verticals for the page as determined by Google.
  //
  message Vertical {
    // The vertical id. See the publisher-verticals.txt file in the technical
    // documentation for a list of ids.
    required int32 id = 1;

    // Weight for this vertical, in the (0.0, 1.0] range. More relevant
    // verticals have higher weights.
    required float weight = 2;
  }

  // Unordered list of detected content verticals. See the
  // publisher-verticals.txt file in the technical documentation for a list of
  // ids.
  repeated Vertical detected_vertical = 13;

  // List of detected content labels. See content-labels.txt file in the
  // technical documentation for a list of ids.
  repeated int32 detected_content_label = 26 [packed=true];

  // This represents a unique ID for the overall query.  In the event
  // that there are multiple callouts for a query, all callout requests for that
  // query will contain the same google_query_id.
  optional string google_query_id = 59;

  // The type of auction that will be run for this query.
  enum AuctionType {
    UNKNOWN_AUCTION_TYPE = 0;
    FIRST_PRICE = 1;
    SECOND_PRICE = 2;
    FIXED_PRICE = 3;
  }
  optional AuctionType auction_type = 60 [default = SECOND_PRICE];

  // Information about the device.
  message Device {
    // The type of device on which the ad will be shown.
    enum DeviceType {
      UNKNOWN_DEVICE = 0;
      HIGHEND_PHONE = 1;
      TABLET = 2;

      // Desktop or laptop devices.
      PERSONAL_COMPUTER = 3;

      // Both connected TVs (that is, smart TVs) and connected devices
      // (such as Roku and Apple TV).
      CONNECTED_TV = 4;

      GAME_CONSOLE = 5;

      SET_TOP_BOX = 6;
    }
    optional DeviceType device_type = 1 [default = UNKNOWN_DEVICE];

    // The platform of the device. Examples: android, iphone, palm
    optional string platform = 2;

    // The brand of the device, e.g. Nokia, Samsung.
    optional string brand = 3 [default = ""];

    // The model of the device, e.g. N70, Galaxy.
    optional string model = 4 [default = ""];

    // Contains the OS version of the platform. For instance, for Android 2,
    // major=2, minor=0. For iPhone 3.3.1, major=3 and minor=3.
    message OsVersion {
      optional int32 major = 1;
      optional int32 minor = 2;
      optional int32 micro = 3;
    }
    // The OS version; e.g. 2 for Android 2.1, or 3.3 for iOS 3.3.1.
    optional OsVersion os_version = 5;

    // Unique identifier for the mobile carrier if the device is connected to
    // the internet via a carrier (as opposed to via WiFi). To look up carrier
    // name and country from carrier ID, please refer to:
    // https://developers.google.com/adwords/api/docs/appendix/mobilecarriers.
    optional int64 carrier_id = 6;

    // The width of the device screen in pixels.
    optional int32 screen_width = 7 [default = 0];

    // The height of the device screen in pixels.
    optional int32 screen_height = 8 [default = 0];

    // Used for high-density devices (e.g. iOS retina displays). A non-default
    // value indicates that the nominal screen size (with pixels as the unit)
    // does not describe the actual number of pixels in the screen. For example,
    // nominal width and height may be 320x640 for a screen that actually has
    // 640x1080 pixels, in which case screen_width=320, screen_height=640, and
    // screen_pixel_ratio_millis=2000, since each axis has twice as many pixels
    // as its dimensions would indicate.
    optional int32 screen_pixel_ratio_millis = 9 [default = 0];

    enum ScreenOrientation {
      UNKNOWN_ORIENTATION = 0;
      PORTRAIT = 1;
      LANDSCAPE = 2;
    }
    // The screen orientation of the device when the ad request is sent.
    optional ScreenOrientation screen_orientation = 10 [
        default = UNKNOWN_ORIENTATION];

    // Apple iOS device model, e.g., "iphone 5s", "iphone 6+", "ipad 4".
    optional string hardware_version = 11;
  }
  optional Device device = 54;

  // Additional key-value attributes. Currently unused.
  message KeyValue {
    optional string key = 1;
    optional string value = 2;
  }
  repeated KeyValue key_value = 38;

  // Information for ad queries coming from mobile devices. A mobile device is
  // either a smartphone or a tablet. This is present for ad queries both from
  // mobile devices browsing the web and from mobile apps.
  message Mobile {
    // If true, then this request is from a mobile application. For branded
    // requests, app_id will also be filled in. If the request is from a mobile
    // web page contained inside an app, is_app will still be false, but app_id
    // could be filled in with the app identifier. is_app may also be true for
    // anonymous inventory, in which case anonymous_id will be set. For SDK-less
    // requests (mostly from connected TVs), this will be true if an app ID is
    // provided directly in the request.
    optional bool is_app = 7 [default = false];

    // The identifier of the mobile app when this ad query comes from a mobile
    // app, or from a mobile web page contained inside an app. If the app was
    // downloaded from the Apple iTunes app store, then this is the app-store
    // id, e.g., 343200656. For Android devices, this is the fully qualified
    // package name, e.g., com.rovio.angrybirds. For Windows devices it's the
    // App ID, e.g., f15abcde-f6gh-47i0-j3k8-37l93817mn3o. For SDK-less requests
    // (mostly from connected TVs), the app ID provided by the publisher
    // directly in the request.
    optional string app_id = 6;

    // If true, then this is a mobile full screen ad request.
    optional bool is_interstitial_request = 10 [default = false];

    // This field contains the IDs of categories to which the current mobile app
    // belongs. This field will be empty if is_app is false. The mapping between
    // mobile apps and categories is defined by the Google Play Store for
    // Android apps, or the Apple iTunes Store for iOS apps. To look up category
    // name from category ID, please refer to
    // https://developers.google.com/adwords/api/docs/appendix/mobileappcategories
    repeated int32 app_category_ids = 11;

    // For a mobile web request, this field indicates whether the page is
    // optimized for mobile browsers on high-end mobile phones.
    optional bool is_mobile_web_optimized = 17 [default=false];

    // This field is used for advertising identifiers for
    // 1) iOS devices (This is called Identifier for Advertising, or IDFA, as
    // described at https://support.google.com/authorizedbuyers/answer/3221407),
    // 2) Android devices,
    // 3) Roku devices,
    // 4) Microsoft Xbox devices,
    // 5) Amazon devices (i.e. Amazon Fire).
    //
    // When the encrypted_advertising_id is an IDFA, the plaintext after
    // decrypting the ciphertext is the IDFA (16 byte UUID) returned by iOS's
    // [ASIdentifierManager advertisingIdentifier]. For encrypted_hashed_idfa,
    // the plaintext is the 16 byte MD5 hash of the IDFA. Only one of the two
    // fields will be available, depending on the version of the SDK making the
    // request. Later SDKs provide unhashed values. They are not set if there is
    // one or more user_data_treatment value in the BidRequest.
    optional bytes encrypted_advertising_id = 20;

    // Unencrypted version of encrypted_advertising_id. This field is only set
    // when using an SSL connection. This field is a 16 byte UUID (binary form)
    // or a 32 byte alphanumeric id (such as Samsung ID).
    optional bytes advertising_id = 27;

    optional bytes encrypted_hashed_idfa = 21;

    // Unencrypted version of encrypted_hashed_idfa. This field is only set
    // when using an SSL connection. This field is a 16 byte MD5.
    optional bytes hashed_idfa = 28;


    // App names for Android apps are from the Google Play store.
    // App names for iOS apps are provided by App Annie
    // (https://www.appannie.com). App names for SDK-less requests (mostly from
    // connected TVs) are provided by the publisher directly in the request.
    optional string app_name = 24;

    // Average user rating for the app. The range of user rating is between 1.0
    // and 5.0. Currently only available for apps in Google Play store.
    optional float app_rating = 25;

    // Identification of and information about an SDK installed in the
    // publisher's app that the bidder has access to, often because it's the
    // bidder's SDK.
    message InstalledSdk {
      // Identifier for the installed SDK.
      optional string id = 1;

      // Semantic version of the installed SDK and the adapter that communicates
      // between the installed SDK and Google's SDK.
      message Version {
        optional int32 major = 1;
        optional int32 minor = 2;
        optional int32 micro = 3;
      }

      // The version of the installed SDK.
      optional Version sdk_version = 2;

      // The version of the adapter that communicates with the installed SDK.
      optional Version adapter_version = 3;
    }
    repeated InstalledSdk installed_sdk = 32;
  }
  optional Mobile mobile = 28;

  // Information about the video if this is an in-video ad request.
  //
  message Video {
    // Describes where the video ad will play.
    enum Placement {
      UNKNOWN_PLACEMENT = 0;

      // Instream means the ad plays before, during, or after other video
      // content. This is similar to a traditional TV commercial. The video
      // content the user is watching does not play while the ad is playing.
      INSTREAM = 1;

      // Interstitial means the video ad plays in front of non-video content,
      // (e.g., a news article or video game). The ad covers all or nearly all
      // of the space on the screen occupied by the content and the user is not
      // able to proceed to the content until the ad has finished or been
      // skipped.
      INTERSTITIAL = 2;

      // The in-feed video format is a video creative that shows within a feed
      // of content, typically a social app feed, a list of editorial content
      // items, etc, as the user is scrolling. It renders centered and not to
      // the side.
      IN_FEED = 3;

      // Audio is a request for an ad that is an audio stream.  It is distinct
      // from INSTREAM above as that is exclusive to video requests.
      AUDIO = 4;

      // The in-article video format is a video creative that loads and plays
      // between paragraphs of editorial content as a standalone video player.
      IN_ARTICLE = 5;
    }
    optional Placement placement = 16 [default=UNKNOWN_PLACEMENT];

    // The URL of the page that the publisher gives Google to describe the video
    // content, with parameters removed.
    optional string description_url = 10;

    // If true, the video is embedded on a page outside the publisher's domain.
    // When this is set, description_url points to a description of the video
    // (as it always does), and the url field in BidRequest is the page in which
    // the video is embedded. For example, a request for an in-stream ad in a
    // Vimeo video shared on Facebook has is_embedded_offsite set. The url field
    // is for a Facebook page and the description_url points to the video on
    // Vimeo.
    optional bool is_embedded_offsite = 11 [default = false];

    // Describes how the video ad will be played. The playback method is
    // determined to be auto-play, click-to-play or mouse-over based on the best
    // measurement available. This includes things like how recently the user
    // interacted with a web page. For auto-play, ads can start playing with the
    // sound on or off. Some ads (e.g. in-feed ads) are muted until the user
    // interacts with the ad. Alternatively, if an ad would normally play with
    // the sound on but the device is muted then the value will be set to sound
    // off. For devices where it is not possible to determine if the device is
    // muted (e.g. desktop), we assume that sound is on.
    enum VideoPlaybackMethod {
      METHOD_UNKNOWN = 0;
      AUTO_PLAY_SOUND_ON = 1;
      AUTO_PLAY_SOUND_OFF = 2;
      CLICK_TO_PLAY = 3;
      MOUSE_OVER = 4;
      INITIATE_ON_ENTERING_VIEWPORT_SOUND_ON = 5;
      INITIATE_ON_ENTERING_VIEWPORT_SOUND_OFF = 6;
    };
    optional VideoPlaybackMethod playback_method = 14
        [default = METHOD_UNKNOWN];

    // Whether the inventory allows clicking on the video ad to take the user to
    // an advertiser site. Some platforms, notably connected TVs, do not
    // support clicking on video ads, in which case this field is set to false.
    optional bool is_clickable = 15;

    // The time in milliseconds from the start of the video when the ad will be
    // displayed. 0 means pre-roll and -1 means post-roll. The value is valid
    // only if this param is set. When not set, the display position is unknown.
    optional int32 videoad_start_delay = 1;

    // The maximum duration in milliseconds of the ad that you should return.
    // If this is not set or has value <= 0, any duration is allowed.
    optional int32 max_ad_duration = 2;

    // The minimum duration in milliseconds of the ad that you should return.
    // If this is not set or has value <= 0, there is no minimum duration.
    optional int32 min_ad_duration = 8;

    // The maximum number of ads in an Adx video pod. A non-zero value indicates
    // that the current ad slot is a video pod that can show multiple video
    // ads. Actual number of video ads shown can be less than or equal to this
    // value but cannot exceed it.
    optional int32 max_ads_in_pod = 12;

    // Does the publisher allow/require/block skippable video ads?
    enum SkippableBidRequestType {
      ALLOW_SKIPPABLE = 0;
      REQUIRE_SKIPPABLE = 1;
      BLOCK_SKIPPABLE = 2;
    }
    optional SkippableBidRequestType video_ad_skippable = 4 [default =
        ALLOW_SKIPPABLE];

    // The maximum duration in milliseconds for the ad you should return, if
    // this ad is skippable (this generally differs from the maximum duration
    // allowed for non-skippable ads). If this is not set or has value <= 0, any
    // duration is allowed.
    optional int32 skippable_max_ad_duration = 5;

    // Supported video protocols.
    enum VideoProtocol {
      UNKNOWN_VIDEO_PROTOCOL = 0;
      VAST_1_0 = 1;
      VAST_2_0 = 2;
      VAST_3_0 = 3;
      VAST_1_0_WRAPPER = 4;
      VAST_2_0_WRAPPER = 5;
      VAST_3_0_WRAPPER = 6;
      VAST_4_0 = 7;
      VAST_4_0_WRAPPER = 8;
      DAAST_1_0 = 9;
      DAAST_1_0_WRAPPER = 10;
    }
    // Array of supported video bid response protocols.
    repeated VideoProtocol protocols = 17 [packed = true];

    // The video file formats that are allowed for this request. The response
    // should support at least one of them.
    enum VideoFormat {
      UNKNOWN_VIDEO_FORMAT = -1;
      VIDEO_FLV = 0;    // Flash video files are accepted (FLV).
      VIDEO_MP4 = 1;
      YT_HOSTED = 2;    // Valid VAST ads with at least one media file hosted
                        // on youtube.com.
      VPAID_FLASH = 3;  // Flash VPAID (SWF).
      VPAID_JS = 4;     // JavaScript VPAID.
      AUDIO_MP3 = 5;
      AUDIO_OGG = 6;
      AUDIO_MP3_OGG = 7;  // Requires both MP3 & OGG as Google does not know
                          // which codecs are installed on the player.
      VIDEO_WEBM = 8;
      VIDEO_MOV = 9;
      VIDEO_3GPP = 10;
      VIDEO_HLS = 11;
      VIDEO_DASH = 12;
      AUDIO_MP4A = 13;    // Audio version of MP4.
    };
    repeated VideoFormat allowed_video_formats = 6;

    // Information about the companion ad slots that can be shown with the
    // video. While this is a repeated field there will only be one value in
    // most cases. If there are no companion ads available this field will not
    // be set.
    //
    message CompanionSlot {
      // These fields represent the available heights and widths in this slot.
      // There will always be the same number heights and widths fields.
      repeated int32 height = 1 [packed=true];
      repeated int32 width  = 2 [packed=true];

      // These are the formats of the creatives allowed in this companion ad
      // slot.
      enum CreativeFormat {
        UNKNOWN_CREATIVE_FORMAT = -1;
        IMAGE_CREATIVE = 0;
        FLASH_CREATIVE = 1;
        HTML_CREATIVE  = 2;
      }
      repeated CreativeFormat creative_format = 3;
    }
    repeated CompanionSlot companion_slot = 7;

    // End cap support. When enabled, the companion ad can be picked to be
    // rendered as an end cap (info card) in the video slot after the video
    // ad finishes playing. If multiple companion ads are returned, IMA SDK
    // chooses one which best matches the device screen size. End cap is
    // supported only on mobile video interstitial inventory.
    enum EndCapSupport {
      END_CAP_NOT_ENABLED = 0;  // Companion ad won't be rendered as end cap.
      END_CAP_OPTIONAL = 1;     // End cap will be rendered if response contains
                                // eligible companion banner, but companion
                                // banner is not required.

      // Not used at this time.
      END_CAP_FORBIDDEN = 2;    // Response with companion ad is filtered.
      // Not used at this time.
      END_CAP_REQUIRED = 3;     // Response without companion ad is filtered.
    }
    optional EndCapSupport end_cap_support = 13 [default =
        END_CAP_NOT_ENABLED];

    // Attributes of the video that the user is viewing, not the video ad.
    // These fields are based on the availability of the video metadata from the
    // video publisher and may not always be populated.
    //
    message ContentAttributes {
      // The title of the video.
      optional string title = 1;

      // The duration of the video, in seconds.
      optional int32 duration_seconds = 2;

      // A list of keywords describing the video, extracted from the content
      // management system of the video publisher. There will be no more than 10
      // keywords in this list.
      repeated string keywords = 3;
    }
    optional ContentAttributes content_attributes = 9;

    // The type of inventory from which request is sent.
    // Deprecated but will continue to be filled in until January 2017.
    // Use the placement field to determine if inventory is interstitial or
    // instream. Use Device.device_type to determine if the request comes from
    // a mobile device and Mobile.is_app to determine if the request comes from
    // an app.
    // WEB_VIDEO is INSTREAM placements from web browsers.
    // GAMES consists of INTERSTITIAL placements from both apps and web
    // browsers.
    // MOBILE_INTERSTITIAL is INTERSTITIAL placements from apps only.
    // This inventory also allows display ads. You can tell if an adslot allows
    // display ads if adslot->excluded_attributes does not contain 21
    // (CreativeType: Html)
    // MOBILE_APP_VIDEO is INSTREAM placement from apps only.
    enum InventoryType {
      WEB_VIDEO = 0;
      GAMES = 1;
      MOBILE_INTERSTITIAL = 2;
      MOBILE_APP_VIDEO = 3;
    }
    optional InventoryType DEPRECATED_inventory_type = 3 [default = WEB_VIDEO];
  }
  optional Video video = 29;

  // The publisher settings list id that applies to this page.
  // See the RTB Publisher Settings guide at
  // https://developers.google.com/authorized-buyers/rtb/pub-settings-guide
  // for details.
  optional fixed64 publisher_settings_list_id = 42;

  // Publisher type of the inventory where the ad will be shown. For an AdX
  // publisher, its inventory can be either owned and operated (O&O),
  // represented by the publisher, or of unknown status. AdSense and AdMob
  // inventory is represented by Google.
  enum PublisherType {
    UNKNOWN_PUBLISHER_TYPE = 0;
    ADX_PUBLISHER_OWNED_AND_OPERATED = 1;
    ADX_PUBLISHER_REPRESENTED = 2;
    GOOGLE_REPRESENTED = 3;
  };
  optional PublisherType publisher_type = 51 [default = UNKNOWN_PUBLISHER_TYPE];

  // -----------------------------------------------------------
  // Information about the adslots on the page.
  message AdSlot {

    // An arbitrarily assigned slot id that is unique on a given page and
    // usually starts counting from 1. You use this to identify which slot to
    // bid on in the BidResponse.
    required int32 id = 1;

    // A stable identifier for the combination of publisher, ad slot, and page.
    optional uint64 ad_block_key = 14;

    // Set of channels of which this ad slot is a member. A channel is a set of
    // ad slots on a site. You can target a channel (like "the sports section",
    // or "all top banners") to get more fine-grained control over where your ad
    // shows. Channel names are provided by the publisher.
    repeated string targetable_channel = 10;

    // The width and height in pixels of the allowed ad sizes. Most requests
    // allow only a single size, but some allow more than one. Widths and
    // heights are at the same index. For example, if the width values are
    // [728, 300, 468] and the height values are [90, 250, 60], then the allowed
    // formats are 728x90, 300x250, and 468x60.
    //
    // For VAST video ad requests a single width/height pair specifies the
    // Google-detected video player size. If Google cannot detect the player
    // size the publisher-provided player size, if available, is used. For
    // VAST video ads, this size is informational; there is no restriction on
    // the size of the video ad that you can return.
    //
    // For mobile interstitial ads (including ones where video ads are eligible)
    // the first width height pair is the slot size (this is also the video
    // player size for VAST video ads). For many interstitials, this is the
    // screen size. Subsequent pairs are recommended interstitial ad sizes that
    // also meet the requirements for this interstitial.
    repeated int32 width = 2;
    repeated int32 height = 3;

    // The disallowed attribute ids for the ads that can show in this slot. See
    // the publisher-excludable-creative-attributes.txt file in the technical
    // documentation for a list of ids.
    repeated int32 excluded_attribute = 4 [packed=true];

    // The allowed vendor types. See the vendors.txt file in the technical
    // documentation for a list of ids. This field does not apply to deals with
    // block overrides (see
    // https://support.google.com/authorizedbuyers/answer/6114194).
    repeated int32 allowed_vendor_type = 6 [packed=true];

    message ConsentedProvidersSettings {
      // Set of IDs corresponding to providers for whom the publisher has told
      // Google that its EEA users have consented to the use of their personal
      // data for ads personalization. A mapping of provider ID to provider name
      // is posted at providers.csv.
      repeated int64 consented_providers = 2 [packed = true];
    }
    // Information about the providers for whom the publisher has told Google
    // that its EEA users have consented to the use of their personal data for
    // ads personalization. This field will only be populated when regs_gdpr is
    // true.
    optional ConsentedProvidersSettings consented_providers_settings = 42;

    // AdX fills this field solely based on whether the impression will serve to
    // an EEA user, based on information available to Google. It does not
    // constitute legal guidance on GDPR. This field is equivalent to
    // Regs.ext.gdpr in AdX OpenRTB.
    optional bool regs_gdpr = 43;

    // The disallowed sensitive ad categories. See the
    // ad-sensitive-categories.txt file in the technical documentation for a
    // list of ids. You should enforce these exclusions if you have the ability
    // to classify ads into the listed categories. This field does not apply to
    // deals with block overrides (see
    // https://support.google.com/authorizedbuyers/answer/6114194).
    repeated int32 excluded_sensitive_category = 7 [packed=true];

    // The allowed restricted ad categories for private and open auctions. See
    // the ad-restricted-categories.txt file in the technical documentation for
    // a list of ids. These only apply for private and open auction bids. See
    // the allowed_restricted_category_for_deals field for preferred deals or
    // programmatic guarantees. If you bid with an ad in a restricted category,
    // you MUST ALWAYS declare the category in the bid response regardless of
    // the values in this field.
    repeated int32 allowed_restricted_category = 16 [packed=true];

    // The allowed restricted ad categories for preferred deals or programmatic
    // guarantees. See the ad-restricted-categories.txt file in the technical
    // documentation for a list of ids. These only apply for preferred deals or
    // programmatic guarantees. See the allowed_restricted_category field for
    // private and open auctions. In some cases, restricted categories are only
    // allowed on preferred deals or programmatic guarantees, so this field
    // lists all categories in allowed_restricted_category, and additionally,
    // restricted categories that are only allowed for preferred deals or
    // programmatic guarantees. If you bid with an ad in a restricted category,
    // you MUST ALWAYS declare the category in the bid response regardless of
    // the values in this field.
    repeated int32 allowed_restricted_category_for_deals = 22 [packed=true];

    // List of creative languages allowed by the publisher. The order is
    // arbitrary. The codes are 2 or 5 characters and are documented at
    // https://developers.google.com/adwords/api/docs/appendix/languagecodes.
    // When not set, all languages are allowed.
    repeated string allowed_languages = 27;

    // The disallowed ad product categories. See the ad-product-categories.txt
    // file in the technical documentation for a list of ids. You should enforce
    // these exclusions if you have the ability to classify ads into the listed
    // categories. This field does not apply to deals with block overrides (see
    // https://support.google.com/authorizedbuyers/answer/6114194).
    repeated int32 excluded_product_category = 13 [packed=true];

    // A creative that is disallowed to bid on this impression due to Ad
    // Exchange policies or creative disapproval, excluded creative attributes,
    // excluded product or sensitive categories, allowed vendor types,
    // restricted categories or languages applicable to the bid request.
    message ExcludedCreative {
      // Buyer creative ID of the disallowed creative.
      optional string buyer_creative_id = 1;
    }

    // Creatives that are disallowed for the impression. Submitting a bid with
    // one of the creatives in this list will result in such bid being filtered
    // before the auction. Please contact your account manager if you would like
    // to enable this feature.
    repeated ExcludedCreative excluded_creatives = 18;

    // Information about the pre-targeting configs that matched.
    //
    message MatchingAdData {
      // The billing ids corresponding to the pretargeting configs that matched.
      repeated int64 billing_id = 2 [
          packed = false
      ];

      // The minimum CPM value that you can bid to not be filtered before the
      // auction. This may be a global minimum, or it may be a minimum set by
      // the publisher. The value is in micros of your account currency.
      optional int64 minimum_cpm_micros = 5;

      // This message is deprecated.
      message BuyerPricingRule {
        // Only one of the included_advertisers and excluded_advertisers fields
        // can be set in a rule. See advertisers.txt file in the technical
        // documentation for a list of ids.
        repeated int64 included_advertisers = 1;
        repeated int64 excluded_advertisers = 2;

        // Only one of the included_agencies and excluded_agencies fields can be
        // set in a rule. See agencies.txt file in the technical documentation
        // for a list of ids.
        repeated int64 included_agencies = 3;
        repeated int64 excluded_agencies = 4;

        // Only one of the blocked and minimum_cpm_micros can be set in a rule.
        // If set to true, indicates that the specified advertisers/agencies are
        // blocked from bidding.
        optional bool blocked = 5;

        // Minimum CPM value that you can bid to not be filtered before the
        // auction. The value is in micros of the bidder account currency.
        optional int64 minimum_cpm_micros = 6;
      }

      // This field is deprecated and will no longer be populated.
      repeated BuyerPricingRule DEPRECATED_pricing_rule = 7;

      // Information about any deals that matched for this inventory.
      //
      message DirectDeal {
        // An id identifying the deal.
        optional int64 direct_deal_id = 1;

        // For deal_type=PREFERRED_DEAL or deal_type=PROGRAMMATIC_GUARANTEED,
        // you must bid at least fixed_cpm_micros (in micros of your account
        // currency) in order to participate in the deal. If you win, you will
        // be charged fixed_cpm_micros. For deal_type=PRIVATE_AUCTION or
        // deal_type=AUCTION_PACKAGE you must bid at least fixed_cpm_micros.
        // Bidding higher CPM than fixed_cpm_micros will increase your chance
        // to win when deal_type=PRIVATE_AUCTION or deal_type=AUCTION_PACKAGE,
        // however it will not increase your chance to win for other types of
        // deals.
        optional int64 fixed_cpm_micros = 2;

        // The type of the deal.
        enum DealType {
          UNKNOWN_DEAL_TYPE = 0;
          PREFERRED_DEAL = 1;
          PRIVATE_AUCTION = 2;

          // See https://support.google.com/authorizedbuyers/answer/7174589
          PROGRAMMATIC_GUARANTEED = 3;

          // See https://support.google.com/authorizedbuyers/answer/7516884
          AUCTION_PACKAGE = 4;
        }
        optional DealType deal_type = 3 [default = UNKNOWN_DEAL_TYPE];

        // Whether the publisher has exempted this deal from configured blocks.
        // This setting does not override AdX policies or Ad Review Center
        // decisions.
        optional bool publisher_blocks_overridden = 4 [default = false];

        // This is deprecated. Please ignore.
        optional int64 DEPRECATED_remaining_impressions_to_buy = 6;

        // Value between 0 and 1 only set for Programmatic Guaranteed deals.
        // Buyers are required to bid if must_bid_level = 1 and can decide
        // whether to bid if must_bid_level < 1.
        optional double must_bid_level = 7 [default = 1.0];
      }
      repeated DirectDeal direct_deal = 6;

    }
    repeated MatchingAdData matching_ad_data = 9;

    // The publisher settings list ids that apply to this slot. See the RTB
    // Publisher Settings guide at
    // https://developers.google.com/authorized-buyers/rtb/pub-settings-guide
    // for details.
    repeated fixed64 publisher_settings_list_id = 15;

    // Parameters related to exchange bidding (third party exchanges doing
    // real-time bidding on DFP). This is never populated in calls to AdX
    // real-time bidders.
    //
    message ExchangeBidding {
      // UTF8 strings optionally provided by the publisher as part of their
      // matching yield group configurations in the DFP UI. The format is
      // arbitrary and should be agreed upon by the publisher and the exchange
      // bidder.
      repeated string publisher_parameter = 1;

      // Repeated KeyValue pairs to be sent from the publisher to the
      // exchange bidder.
      repeated KeyValue key_value = 3;
    }
    optional ExchangeBidding exchange_bidding = 28;

    // The ad unit code (https://support.google.com/admanager/topic/4426071)
    // This is currently only set for exchange bidding requests.
    optional string dfp_ad_unit_code = 33;

    // Visibility information for the slot.
    enum SlotVisibility  {
      NO_DETECTION = 0;
      ABOVE_THE_FOLD = 1;
      BELOW_THE_FOLD = 2;
    }
    optional SlotVisibility slot_visibility = 12 [default = NO_DETECTION];

    // Viewability percentage for the ad slot. This is an estimate of the
    // likelihood that this slot will be viewable by the end user based on
    // historical and environment data. It is expressed as a percentage in the
    // range of [0, 100] and rounded down to the next multiple of 10. The
    // default value -1 indicates that viewability could not be estimated.
    optional int32 viewability = 21 [default = -1];

    // Historical click-through rate for ads served in the ad slot. This is
    // expressed as a fraction in the range [0.0, 1.0]. The default value of
    // -1.0 indicates that historical click-through rate data is not available.
    // This figure does not include data aggregated from AdWords.
    optional float click_through_rate = 25 [default = -1.0];

    // Historical completion rate for video ads served in the ad slot. This is
    // expressed as a fraction in the range [0.0, 1.0]. The default value of
    // -1.0 indicates that historical completion rate data is not available.
    // This field is only applicable to video inventory, and does not include
    // data aggregated from AdWords.
    optional float video_completion_rate = 30 [default = -1.0];

    // iFraming state of the ad slot on the webpage where it is present.
    enum IFramingState {
      UNKNOWN_IFRAME_STATE = 0;
      NO_IFRAME = 1;
      SAME_DOMAIN_IFRAME = 2;
      CROSS_DOMAIN_IFRAME = 3;
    };
    optional IFramingState iframing_state = 19 [default = UNKNOWN_IFRAME_STATE];

    // iFrame depth of the ad slot on the webpage where it is present.
    // Currently only set for video ad requests.
    enum IFramingDepth {
      UNKNOWN_IFRAME_DEPTH = 0;
      NOT_IN_IFRAME = 1;
      ONE_IFRAME = 2;
      MULTIPLE_IFRAME = 3;
     };
    optional IFramingDepth iframing_depth = 20 [default = UNKNOWN_IFRAME_DEPTH];

    // A native ad consists of pieces that are rendered by the publisher. A
    // publisher may support multiple distinct native ad templates. If the
    // request also allows banners or videos, you can respond with other
    // types of ads by setting html_snippet or video_url instead. If only
    // native templates exist, you must set the native_ad field in any
    // response you send.
    //
    message NativeAdTemplate {
      // Defines the bits used in required_fields and recommended_fields. There
      // is one bit for each of the fields in BidResponse.Ad.NativeAd
      enum Fields {
        NO_FIELDS = 0x0;
        HEADLINE = 0x1;
        BODY = 0x2;
        CALL_TO_ACTION = 0x4;
        ADVERTISER = 0x8;
        IMAGE = 0x10;
        LOGO = 0x20;
        APP_ICON = 0x40;
        STAR_RATING = 0x80;
        PRICE = 0x100;
        DEPRECATED_STORE = 0x200;
        VIDEO = 0x400;
      }

      // Bitfield describing which fields are required by the publisher. Bid
      // responses with no value for these fields will be rejected. Click and
      // view tracking urls are always implicitly required.
      optional int64 required_fields = 1;

      // Bitfield describing which fields are recommended by the publisher. All
      // recommended fields are supported, but not all recommended fields are
      // required.
      optional int64 recommended_fields = 2;

      // max_safe_length indicates the maximum number of Unicode characters that
      // are guaranteed to be shown without truncation. Longer strings may be
      // truncated and ellipsized by Ad Exchange or the publisher during
      // rendering.
      optional int32 headline_max_safe_length = 3;
      optional int32 body_max_safe_length = 4;
      optional int32 call_to_action_max_safe_length = 5;
      optional int32 advertiser_max_safe_length = 6;

      // This field is deprecated.
      optional int32 DEPRECATED_store_max_safe_length = 14;
      optional int32 price_max_safe_length = 15;

      // The width and height from which to calculate the required aspect ratio.
      // You can provide a larger image in the response. Images that have aspect
      // ratios substantially different than those implied by the height and
      // width may be filtered.
      optional int32 image_width = 7;
      optional int32 image_height = 8;
      optional int32 logo_width = 9;
      optional int32 logo_height = 10;
      optional int32 app_icon_width = 11;
      optional int32 app_icon_height = 12;

      // Globally distinct id for the specific style, HTML, and CSS with which
      // the native ad is rendered.
      optional int32 style_id = 16;

      // Type of style layout for each native ad template.
      enum LayoutType {
        PIXEL = 0;
        FLUID = 1;
      }
      optional LayoutType style_layout_type = 17 [default = PIXEL];

      // If the style_layout_type is Pixel, width and height of the
      // entire native ad after rendering. If the style_layout_type is
      // Fluid, the style_height and style_width may optionally
      // not be populated.
      optional int32 style_height = 18;
      optional int32 style_width = 19;
    }
    repeated NativeAdTemplate native_ad_template = 51;

    // NativePlacementType describes placement of native ad slot with respect to
    // surrounding context.
    enum NativePlacementType {
      PLACEMENT_UNKNOWN = 0;
      // In the feed of content - for example as an item inside the organic
      // feed/grid/listing/carousel.
      PLACEMENT_IN_FEED = 1;
      // In the atomic unit of the content - i.e., in the article page or single
      // image page.
      PLACEMENT_ATOMIC_UNIT = 2;
      // Outside the core content - for example in the ads section on the right
      // rail, as a banner-style placement near the content, etc.
      PLACEMENT_OUTSIDE = 3;
      // Recommendation widget, most commonly presented below the article
      // content.
      PLACEMENT_RECOMMENDATION = 4;
    }

    optional NativePlacementType native_placement_type = 45
        [default = PLACEMENT_UNKNOWN];

    // Whether the ad request has been determined to come directly from the
    // publisher.
    enum MediationStatus {
      UNKNOWN = 0;
      DIRECT_REQUEST = 1;
    };
    optional MediationStatus mediation_status = 52 [default = UNKNOWN];

    // Auto refresh settings.
    message AutoRefresh {
      message AutoRefreshSettings {
        enum AutoRefreshType {
          UNKNOWN_AUTO_REFRESH_TYPE = 0;
          USER_ACTION = 1;  // Refresh triggered by user-initiated action such
                            // as scrolling.
          EVENT = 2;  // Event-driven content change. For example, ads refresh
                      // when the football game score changes on the page.
          TIME = 3;   // Time-based refresh. Ads refresh on a predefined time
                      // interval even without user activity.
        }
        // The type of the declared auto refresh.
        optional AutoRefreshType refresh_type = 1
          [default = UNKNOWN_AUTO_REFRESH_TYPE];

        // The minimum refresh interval. This applies to all refresh types.
        optional int32 min_refresh_interval_seconds = 2;
      }

      // The auto-refresh settings that the publisher has on this
      // inventory. This is repeated because publishers may
      // do multiple types of auto refresh on one piece of inventory.
      repeated AutoRefreshSettings refresh_settings = 1;

      // The number of times this ad slot had been refreshed since last page
      // load.
      optional int32 refresh_count = 2 [default = 0];
    }
    optional AutoRefresh auto_refresh = 23;

    // Stickiness settings declared by the publisher.
    // Next Tag: 4
    message StickySettings {
      // Specifies the allowable sticky settings values.
      enum Stickiness {
        UNKNOWN_STICKINESS = 0;
        IS_STICKY = 1;
      }

      // Whether the request originated from an ad slot that scrolls along with
      // the contents of the page vertically.
      optional Stickiness vertical_stickiness = 1
          [default = UNKNOWN_STICKINESS];

      // Whether the request originated from an ad slot that scrolls along with
      // the contents of the page horizontally, and is located at the top of the
      // page.
      optional Stickiness top_horizontal_stickiness = 2
          [default = UNKNOWN_STICKINESS];

      // Whether the request originated from an ad slot that scrolls along with
      // the contents of the page horizontally, and is located at the bottom of
      // the page.
      optional Stickiness bottom_horizontal_stickiness = 3
          [default = UNKNOWN_STICKINESS];
    }
    optional StickySettings sticky_settings = 31;

    // Sources for non-browser inventory.
    enum NonBrowserSource {
      UNDECLARED_SOURCE = 0;
      DESKTOP_APP = 1;
    }
    // Publisher declaration stating that this ad slot may serve on
    // non-browser inventory, like desktop apps.
    optional NonBrowserSource non_browser_slot_source = 34
      [default = UNDECLARED_SOURCE];

    // Publisher declaration stating that this ad slot will serve an
    // interstitial ad. An interstitial ad covers the content for a period of
    // time.
    optional bool is_interstitial_slot = 35 [default = false];

    // Defines who controls the environment that made the ad request and will
    // render the ad. On platforms where code written by Google will handle
    // the ad this field is set to GOOGLE. When this field is PUBLISHER the
    // publisher has placed their own code on the device to handle playback of
    // the ad. There is no technical difference in how these request are
    // handled. You may use this field to differentiate between different
    // environments for non-technical reasons. This field is only set for
    // requests that allow VAST video ads.
    enum Renderer {
      UNKNOWN_RENDERER = 0;
      GOOGLE = 1;
      PUBLISHER = 2;
    }
    optional Renderer renderer = 26 [default = UNKNOWN_RENDERER];

    // Whether this request is for an Accelerated Mobile Page (AMP). AMP HTML
    // pages load faster, by restricting parts of HTML, CSS and Javascript. For
    // more information on how AMP ads render, refer to the AMP ads README:
    // https://github.com/ampproject/amphtml/blob/master/ads/README.md
    enum AmpAdRequestType {
      // AMP status unknown. Request may or may not be from an AMP page.
      UNKNOWN_AMP = 0;

      // Not an AMP page. Could be regular HTML, VAST video, etc.
      NON_AMP_PAGE = 1;

      // Late-loading request from an AMP HTML page. Ad will render with a
      // slight delay so it will not negatively impact page render performance.
      AMP_PAGE_LATE_REQUEST = 2;
    }
    optional AmpAdRequestType amp_ad_request_type = 29 [default = NON_AMP_PAGE];

    // Whether this is an AMP page or not.
    enum AmpPage {
      // AMP page status unknown.
      UNKNOWN_AMP_PAGE = 0;
      // This is not an AMP page.
      DIALECT_HTML = 1;
      // This is an Amp page.
      DIALECT_HTML_AMP = 2;
    }
    optional AmpPage is_amp_page = 38;

    // Possible requirement types for AMP ads.
    enum AmpAdRequirementType {
      // AMP ad requirements unknown.
      UNKNOWN_AMP_AD_REQUIREMENT_TYPE = 0;
      // AMP ads are not allowed.
      AMP_AD_NOT_ALLOWED = 1;
      // Either AMP ads or non-AMP ads are allowed;
      // AMP ads are not early rendered.
      AMP_AD_ALLOWED_AND_NOT_EARLY_RENDERED = 2;
      // Either AMP ads or non-AMP ads are allowed;
      // AMP ads are early rendered.
      AMP_AD_ALLOWED_AND_EARLY_RENDERED = 3;
      // AMP ads are required.
      // Ads that are non-AMP may be rejected by the publisher.
      AMP_AD_REQUIRED = 4;
    }
    optional AmpAdRequirementType amp_ad_requirement_type = 39;

    // Whether the user receives a reward for viewing the ad. For video ads,
    // typical implementations allow users to read an additional news article
    // for free, receive an extra life in a game, or get a sponsored ad-free
    // music session. The reward is typically distributed after the video ad is
    // completed.
    optional bool is_rewarded = 32 [default = false];

    // Possible ad types that are allowed in the bid response. allowed_ad_types
    // always contains one or more values. Interstitial slots may also support
    // banner ads. An ad slot with ALLOWED_AD_TYPE_NATIVE may or may not support
    // native video, regardless of whether ALLOWED_AD_TYPE_VIDEO is set.
    // Likewise, an ad slot without ALLOWED_AD_TYPE_NATIVE does not support
    // native video, regardless of whether ALLOWED_AD_TYPE_VIDEO is set.
    enum AllowedAdType {
      UNKNOWN_ALLOWED_AD_TYPE = -1;
      ALLOWED_AD_TYPE_BANNER = 0;
      ALLOWED_AD_TYPE_NATIVE = 1;
      ALLOWED_AD_TYPE_VIDEO = 2;
      ALLOWED_AD_TYPE_AUDIO = 3;
    }
    repeated AllowedAdType allowed_ad_types = 36 [packed = true];

    // Total number of impressions served to this user (within this specific
    // site or app) in this browsing session, plus 1. A session ends after 30
    // minutes inactivity.  The default value of -1 indicates that the session
    // depth cannot be estimated.
    optional int32 session_depth = 40 [default = -1];

    // Data, opaque to Google and to the publisher, generated by the buyer
    // within the publisher's mobile application.
    message BuyerGeneratedRequestData {
      // Identification for the source of the buyer generated request data when
      // that source is from within an application.
      message SourceApp {
        // Identifier for the SDK that generated this data. It will match the id
        // in mobile.installed_sdk.id.
        optional string id = 1;
      }
      // The source of the data.
      oneof source {
        SourceApp source_app = 1;
      }

      // Data sent from the buyer's source within the publisher's domain to the
      // bidder. This data is opaque to the publisher and to Google.
      optional string data = 2;
    }
    repeated BuyerGeneratedRequestData buyer_generated_request_data = 41;

  }
  repeated AdSlot adslot = 14;

  // Feedback on bids submitted in previous responses. This is only set if
  // real-time feedback is enabled for your bidder. Please contact your account
  // manager if you wish to enable real-time feedback.
  //
  message BidResponseFeedback {
    // The unique id from BidRequest.id
    optional bytes request_id = 1;

    // The index of the BidResponse_Ad if there was more than one. The index
    // starts at zero for the first creative.
    optional int32 creative_index = 2;

    // The status code for the ad. See creative-status-codes.txt in the
    // technical documentation for a list of ids.
    optional int32 creative_status_code = 3;

    // If the bid won the auction, this is the price paid in your account
    // currency.  If the bid participated in the auction but was out-bid, this
    // is the CPM that should have been exceeded in order to win.  This is not
    // set if the bid was filtered prior to the auction, if the publisher or
    // winning bidder has opted out of price feedback or if your account has
    // opted out of sharing winning prices with other bidders. For first price
    // auctions, minimum_bid_to_win is also populated.
    optional int64 cpm_micros = 4;

    // The minimum bid value necessary to have won the auction, in micros of
    // your account currency. If your bid won the auction, this is the second
    // highest bid that was not filtered (including the floor price). If your
    // bid did not win the auction, this is the winning candidate's bid. This
    // field will only be populated if your bid participated in a first-price
    // auction, and will not be populated if your bid was filtered prior to the
    // auction.
    optional int64 minimum_bid_to_win = 7;

    // Event notification token that was included in the bid response.
    optional bytes event_notification_token = 5;

    // Buyer creative ID that was included in the bid response.
    optional string buyer_creative_id = 6;
  }
  repeated BidResponseFeedback bid_response_feedback = 44;

  // How many milliseconds Google will wait for a response before ignoring it.
  optional int32 response_deadline_ms = 57;

  // -----------------------------------------------------------
  // Testing flags.

  // If true, then this is a test request. Results will not be displayed to
  // users and you will not be billed for a response even if it wins the
  // auction. You should still do regular processing since the request may be
  // used to evaluate latencies or for other testing. During your initial
  // testing with Google traffic any response that you make will be filtered
  // out of the auction whether this flag has a value of true or false.
  optional bool is_test = 15 [default=false];

  // If true, then this request is intended to measure network latency. Please
  // return an empty BidResponse with only processing_time_ms set as quickly as
  // possible without executing any bidding logic.
  optional bool is_ping = 17 [default=false];

  // If true, then the callout model predicted that you will not bid
  // on this request. We send a sampled percentage of such requests so that we
  // can automatically update the model when bidding patterns change.
  optional bool is_predicted_to_be_ignored = 45 [default=false];

}

// This is the message that you return in response to a BidRequest. You may
// specify zero or more ads. For each ad, you should provide an ad slot on
// which the ad can run. An ad slot is identified by the AdSlot.id from the
// BidRequest. If you do not wish to bid, submit a response with no ads and
// with only the processing_time_ms set.
//
message BidResponse {
  message Ad {
    // The event notification token is sent to AdX by bidders for
    // troubleshooting. AdX will include the token in real-time feedback for the
    // bid. The content of the token will not be logged by AdX. AdX will ignore
    // any token longer than 64 bytes.
    optional bytes event_notification_token = 25;

    // A unique identifier chosen by you for the creative in this response.
    // This must always be set, must be limited to at most 64 bytes, and must be
    // a valid UTF8 string. Every buyer_creative_id you use must always be
    // associated with the same creative. This field is used to communicate
    // approval statuses when issues are found. Do not specify the same id for
    // different creatives, or all creatives will be disapproved if a problem
    // with a single creative is found. Do not specify different ids for the
    // same creative in different responses or no creatives will be served since
    // approval status is assigned on a per-id basis.
    optional string buyer_creative_id = 10;

    // Only one of the following should be set:
    // 1) html_snippet, 2) video_url, 3) native_ad, or 4) sdk_rendered_ad.

    // The HTML snippet that will be placed on the web page to display the ad.
    // Please use BidResponse.Ad.AdSlot.billing_id to indicate which billing id
    // this snippet is attributed to.
    optional string html_snippet = 1;

    // The URL to fetch a video ad. The URL should return an XML response that
    // conforms to the VAST 2.0 or 3.0 standard. Please use
    // BidResponse.Ad.AdSlot.billing_id to indicate which billing id to
    // attribute this ad to. Only one of the following should be set:
    // html_snippet, video_url. Only set this field if the BidRequest is for an
    // in-video ad (BidRequest.video is present).
    optional string video_url = 9;

    // The VAST document to be returned. This document should conform to the
    // VAST 2.0 or 3.0 standard. Please use BidResponse.Ad.AdSlot.billing_id to
    // indicate which billing ID to attribute this ad to.
    // Only set this field if the BidRequest is for an in-video ad and the
    // response is VAST XML.
    optional string video_vast_xml = 24;

    // The URL to fetch an AMPHTML ad. Only one of the following should be set:
    // html_snippet, video_url, amp_ad_url, native_ad.
    optional string amp_ad_url = 23;

    // The content of a native ad. Native ads consist of multiple building
    // blocks, which are rendered by the publisher. Only one of the following
    // should be set: html_snippet, video_url, or native_ad.
    // Only set this field if the BidRequest is for a native ad
    // (BidRequest.adslot.native is present).
    //
    message NativeAd {
      // A short title for the ad.
      optional string headline = 1;

      // A long description of the ad.
      optional string body = 2;

      // A label for the button that the user is supposed to click
      optional string call_to_action = 3;

      // The name of the advertiser or sponsor, to be displayed in the ad
      // creative.
      optional string advertiser = 4;

      message Image {
        optional string url = 1;

        // Image width and height are specified in pixels. You may provide a
        // larger image than was requested, so long as the aspect ratio is
        // preserved.
        optional int32 width = 2;
        optional int32 height = 3;
      }

      // A large image.
      optional Image image = 5;

      // A smaller image, for the advertiser's logo.
      optional Image logo = 6;

      // The app icon, for app download ads.
      optional Image app_icon = 7;

      // The URL to fetch a video ad. The URL should return an XML response that
      // conforms to the VAST 2.0 standard. Only set this field if the
      // BidRequest is for native ads and the video field is requested.
      optional string video_url = 13;

      // The app rating in the app store. Must be in the range [0-5].
      optional double star_rating = 8;

      // The URL that the browser/SDK will load when the user clicks the ad.
      // This can be the landing page directly, or the first step of a redirect
      // chain that eventually leads to it. For backward compatibility, if this
      // is not set, the first Ad.click_through_url is used.
      optional string click_link_url = 14;

      // The URL to use for click tracking. The SDK pings click tracking url on
      // a background thread. When resolving the url, HTTP 30x redirects are
      // followed. The SDK ignores the contents of the response; this URL
      // has no effect on the landing page for the user.
      // This field is planned to be deprecated and we are moving to the
      // repeated click_tracking_urls field.
      optional string click_tracking_url = 11;

      // The URLs to use for click tracking. This will be used throughout the
      // serving stack and will incorporate any URL in click_tracking_url.
      repeated string click_tracking_urls = 15;

      // The price of the promoted app including the currency info.
      optional string price = 10;

      // This field is deprecated.
      optional string DEPRECATED_store = 12;

      // This field is deprecated. Please use
      // BidResponse.Ad.impression_tracking_url instead.
      repeated string DEPRECATED_impression_tracking_url = 9;
    };
    optional NativeAd native_ad = 18;

    // The set of destination URLs for the snippet. This includes the URLs that
    // the user will go to if they click on the displayed ad, and any URLs that
    // are visible in the rendered ad. Do not include intermediate calls to the
    // adserver that are unrelated to the inal landing page. A BidResponse that
    // returns a snippet or video ad but declares no click_through_url will be
    // discarded. Only set this field if html_snippet or video_url or native_ad
    // are set. This data is used as a destination URL declaration, for example
    // for post-filtering of publisher-blocked URLs or ad categorization.
    //
    // For non-native ads, it is not used for click tracking or any
    // other ad functionality; it is only used as a destination URL
    // declaration.
    //
    // For native ads, if NativeAd.click_link_url is not set, the first
    // value of click_through_url is used to direct the user to the landing
    // page. In addition, all values are used as destination
    // URL declarations (similar to the non-native case).
    repeated string click_through_url = 4;

    // All vendor types for the ads that may be shown from this snippet. You
    // should only declare vendor ids listed in the vendors.txt file in the
    // technical documentation. We will check to ensure that the vendors you
    // declare are in the allowed_vendor_type list sent in the BidRequest for
    // AdX publishers.
    repeated int32 vendor_type = 5;

    // All attributes for the ads that may be shown from this snippet. See
    // buyer-declarable-creative-attributes.txt in the technical documentation
    // for a list of ids. We will check to ensure none of these attributes are
    // in the excluded_attribute list in the BidRequest.
    repeated int32 attribute = 6;

    // All sensitive categories for the ads that may be shown from this snippet.
    // See ad-sensitive-categories.txt in the technical documentation for a list
    // of ids. We will check to ensure none of these categories were in the
    // excluded_sensitive_category list in the BidRequest.
    repeated int32 category = 7;

    // All restricted categories for the ads that may be shown from this
    // snippet. See ad-restricted-categories.txt in the technical documentation
    // for a list of ids. We will check to ensure these categories were listed
    // in the allowed_restricted_category list in the BidRequest. If you are
    // bidding with ads in restricted categories you MUST ALWAYS declare them
    // here.
    repeated int32 restricted_category = 17;

    // All names of the ad's advertisers.
    repeated string advertiser_name = 11;

    // For exchange bidders (third party exchanges doing real-time bidding on
    // DFP), the name of the bidder that the exchange called to provide the ad.
    // This is arbitrary UTF8 text but should be sufficient to identify the
    // bidder and should be set consistently to the same value for the same
    // bidder.
    optional string bidder_name = 22;

    // The width and the height in pixels of the ad. Setting these is optional.
    // However, these must be set if the bid BidRequest.AdSlot has more than one
    // width and height or if BidRequest.Mobile.is_interstitial_request is true.
    optional int32 width = 14;
    optional int32 height = 15;

    // The Agency associated with this ad. See agencies.txt file in the
    // technical documentation for a list of ids. If this ad has no associated
    // agency then the value NONE (agency_id: 1) should be used rather than
    // leaving this field unset.
    optional int64 agency_id = 16;

    message AdSlot {
      // The slot id from the BidRequest that the ad may appear in.
      required int32 id = 1;

      // The maximum CPM you want to be charged if you win the auction for this
      // ad slot, expressed in micros of your account currency. For example, to
      // bid a CPM of 1.29 USD, set max_cpm_micros = 1290000. Winning bids are
      // rounded up to billable units. For example, in USD, bids are rounded up
      // to the next multiple of 10,000 micros (one cent).
      required int64 max_cpm_micros = 2;

      // The minimum CPM you want to be charged if you win the auction for this
      // ad slot. This may represent a second price if you choose max_cpm as the
      // highest of several bids, or some form of reserve price if you wish to
      // override the reserve price set by the publisher. The bid must be less
      // than or equal to max_cpm_micros or it will be ignored. This field is
      // optional and does not need to be set. This field is not applicable
      // when responding to bid requests with auction_type set to FIRST_PRICE.
      optional int64 min_cpm_micros = 3;

      // Billing id to attribute this impression to. The value must be in the
      // set of billing ids for this slot that were sent in the
      // BidRequest.AdSlot.matching_ad_data.billing_id. This must always be set
      // if the BidRequest has more than one
      // BidRequest.AdSlot.matching_ad_data.billing_id.
      optional int64 billing_id = 4;

      // The deal id that you want this bid to participate in. Leave unset
      // or set it to "1" if a deal is available but you want to
      // ignore the deal and participate in the open auction.
      optional int64 deal_id = 5 [default = 0];

      // For exchange bidders (third party exchanges doing real-time bidding on
      // DFP), the deal id from the exchange's namespace that is associated with
      // this bid and reported to publishers.  Leave unset if there is no
      // associated deal. This is arbitrary UTF8 text and must be at most 64
      // bytes.
      optional string exchange_deal_id = 6;

      // When exchange_deal_id is set, the type of deal.  This is reported to
      // publishers and affects how the deal is treated in the auction.
      enum ExchangeDealType  {
        OPEN_AUCTION = 0;
        PRIVATE_AUCTION = 1;
        PREFERRED_DEAL = 2;
        EXCHANGE_AUCTION_PACKAGE = 3;
      }
      optional ExchangeDealType exchange_deal_type = 7 [default = OPEN_AUCTION];

      // Buyer declared ID which will be used to breakdown spend and invalid
      // traffic metrics in IVT transparency reporting. IDs longer than 64 bytes
      // will be ignored.
      optional string buyer_reporting_id = 8;

      // This field is applicable only for bid requests that are marked as
      // first price, and will otherwise be ignored. If the field is set to
      // true on a first price request, then the bid will go through a bid
      // translation service that converts the second price bid into a first
      // price bid for participation in the first price auction (i.e. may
      // reduce but will never increase the bid). If the field is not set,
      // then for first price eligible queries the bid will be treated as a
      // first price bid. This field is a temporary product for bidders that
      // require assistance migrating to 1st price bidding, and will eventually
      // be deprecated.
      optional bool use_bid_translation_service = 10;

    }
    repeated AdSlot adslot = 3;

    // The URLs to call when the impression is rendered. This is supported for
    // all inventory types and all formats except for VAST video.
    repeated string impression_tracking_url = 19;

    // Link to ad preferences page. This is only supported for native ads.
    // If present, a standard AdChoices icon is added to the native creative and
    // linked to this URL.
    optional string ad_choices_destination_url = 21;

    message ImpressionTrackingResource {
      // The URL of a Javascript resource. The URLs should not contain script
      // tags. For example: "https://mycdn.com/tracker.js".
      optional string script_url = 1;

      // Additional context provided for rendering.
      enum Context {
        UNKNOWN_CONTEXT = 0;
        OMID = 1;
      };
      repeated Context context = 2;

      // Parameters associated with the resource that will be passed to the
      // resource when it is loaded. The format of the parameters is dependent
      // on the script vendor.
      optional string verification_parameters = 3;

      // Used to uniquely identify the verification script provider.
      optional string vendor_key = 4;
    };
    // Resources to invoke when the impression is rendered. This is supported
    // for native and banner formats only and explicitly whitelisted scripts
    // only.
    repeated ImpressionTrackingResource impression_tracking_resource = 26;
    // An ad that will be rendered by an SDK known to the buyer. This can only
    // be used when the BidRequest included a mobile.installed_sdk submessage.
    message SdkRenderedAd {
      // The identifier for the SDK that will render the ad. Must match a
      // mobile.installed_sdk.id sent in the corresponding bid request.
      optional string id = 1;

      // Data to pass to the SDK in order to render the ad. This data is opaque
      // to the publisher and to Google.
      optional string rendering_data = 2;
    }
    optional SdkRenderedAd sdk_rendered_ad = 27;
  }
  repeated Ad ad = 2;

  // If is_test was set in the BidRequest, then you may return debug information
  // as plain text in this field. Please do not set this field under normal
  // conditions, or set it to values longer than 100 characters. You should only
  // use this field when asked to do so as part of troubleshooting particular
  // problems.
  optional string debug_string = 5;

  // Please set this to the processing time in milliseconds from when you
  // received the request to when you returned the response.
  optional int32 processing_time_ms = 4;

}




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