text: /// @file FIRParameterNames.h
  ///
  /// Predefined event parameter names.
  ///
  /// Params supply information that contextualize Events. You can associate up to 25 unique Params
  /// with each Event type. Some Params are suggested below for certain common Events, but you are
  /// not limited to these. You may supply extra Params for suggested Events or custom Params for
  /// Custom events. Param names can be up to 40 characters long, may only contain alphanumeric
  /// characters and underscores ("_"), and must start with an alphabetic character. Param values can
  /// be up to 100 characters long. The "firebase_", "google_", and "ga_" prefixes are reserved and
  /// should not be used.
  
  #import "FIRAnalyticsSwiftNameSupport.h"
  
  /// Game achievement ID (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterAchievementID : @"10_matches_won",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterAchievementID FIR_SWIFT_NAME(AnalyticsParameterAchievementID) =
      @"achievement_id";
  
  /// Ad Network Click ID (NSString). Used for network-specific click IDs which vary in format.
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterAdNetworkClickID : @"1234567",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterAdNetworkClickID
      FIR_SWIFT_NAME(AnalyticsParameterAdNetworkClickID) = @"aclid";
  
  /// The store or affiliation from which this transaction occurred (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterAffiliation : @"Google Store",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterAffiliation FIR_SWIFT_NAME(AnalyticsParameterAffiliation) =
      @"affiliation";
  
  /// The individual campaign name, slogan, promo code, etc. Some networks have pre-defined macro to
  /// capture campaign information, otherwise can be populated by developer. Highly Recommended
  /// (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterCampaign : @"winter_promotion",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterCampaign FIR_SWIFT_NAME(AnalyticsParameterCampaign) =
      @"campaign";
  
  /// Character used in game (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterCharacter : @"beat_boss",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterCharacter FIR_SWIFT_NAME(AnalyticsParameterCharacter) =
      @"character";
  
  /// The checkout step (1..N) (unsigned 64-bit integer as NSNumber).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterCheckoutStep : @"1",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterCheckoutStep FIR_SWIFT_NAME(AnalyticsParameterCheckoutStep) =
      @"checkout_step";
  
  /// Some option on a step in an ecommerce flow (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterCheckoutOption : @"Visa",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterCheckoutOption
      FIR_SWIFT_NAME(AnalyticsParameterCheckoutOption) = @"checkout_option";
  
  /// Campaign content (NSString).
  static NSString *const kFIRParameterContent FIR_SWIFT_NAME(AnalyticsParameterContent) = @"content";
  
  /// Type of content selected (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterContentType : @"news article",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterContentType FIR_SWIFT_NAME(AnalyticsParameterContentType) =
      @"content_type";
  
  /// Coupon code for a purchasable item (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterCoupon : @"zz123",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterCoupon FIR_SWIFT_NAME(AnalyticsParameterCoupon) = @"coupon";
  
  /// Campaign custom parameter (NSString). Used as a method of capturing custom data in a campaign.
  /// Use varies by network.
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterCP1 : @"custom_data",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterCP1 FIR_SWIFT_NAME(AnalyticsParameterCP1) = @"cp1";
  
  /// The name of a creative used in a promotional spot (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterCreativeName : @"Summer Sale",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterCreativeName FIR_SWIFT_NAME(AnalyticsParameterCreativeName) =
      @"creative_name";
  
  /// The name of a creative slot (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterCreativeSlot : @"summer_banner2",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterCreativeSlot FIR_SWIFT_NAME(AnalyticsParameterCreativeSlot) =
      @"creative_slot";
  
  /// Purchase currency in 3-letter <a href="http://en.wikipedia.org/wiki/ISO_4217#Active_codes">
  /// ISO_4217</a> format (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterCurrency : @"USD",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterCurrency FIR_SWIFT_NAME(AnalyticsParameterCurrency) =
      @"currency";
  
  /// Flight or Travel destination (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterDestination : @"Mountain View, CA",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterDestination FIR_SWIFT_NAME(AnalyticsParameterDestination) =
      @"destination";
  
  /// The arrival date, check-out date or rental end date for the item. This should be in
  /// YYYY-MM-DD format (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterEndDate : @"2015-09-14",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterEndDate FIR_SWIFT_NAME(AnalyticsParameterEndDate) = @"end_date";
  
  /// Flight number for travel events (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterFlightNumber : @"ZZ800",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterFlightNumber FIR_SWIFT_NAME(AnalyticsParameterFlightNumber) =
      @"flight_number";
  
  /// Group/clan/guild ID (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterGroupID : @"g1",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterGroupID FIR_SWIFT_NAME(AnalyticsParameterGroupID) = @"group_id";
  
  /// Index of an item in a list (signed 64-bit integer as NSNumber).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterIndex : @(1),
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterIndex FIR_SWIFT_NAME(AnalyticsParameterIndex) = @"index";
  
  /// Item brand (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterItemBrand : @"Google",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterItemBrand FIR_SWIFT_NAME(AnalyticsParameterItemBrand) =
      @"item_brand";
  
  /// Item category (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterItemCategory : @"t-shirts",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterItemCategory FIR_SWIFT_NAME(AnalyticsParameterItemCategory) =
      @"item_category";
  
  /// Item ID (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterItemID : @"p7654",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterItemID FIR_SWIFT_NAME(AnalyticsParameterItemID) = @"item_id";
  
  /// The Google <a href="https://developers.google.com/places/place-id">Place ID</a> (NSString) that
  /// corresponds to the associated item. Alternatively, you can supply your own custom Location ID.
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterItemLocationID : @"ChIJiyj437sx3YAR9kUWC8QkLzQ",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterItemLocationID
      FIR_SWIFT_NAME(AnalyticsParameterItemLocationID) = @"item_location_id";
  
  /// Item name (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterItemName : @"abc",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterItemName FIR_SWIFT_NAME(AnalyticsParameterItemName) =
      @"item_name";
  
  /// The list in which the item was presented to the user (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterItemList : @"Search Results",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterItemList FIR_SWIFT_NAME(AnalyticsParameterItemList) =
      @"item_list";
  
  /// Item variant (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterItemVariant : @"Red",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterItemVariant FIR_SWIFT_NAME(AnalyticsParameterItemVariant) =
      @"item_variant";
  
  /// Level in game (signed 64-bit integer as NSNumber).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterLevel : @(42),
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterLevel FIR_SWIFT_NAME(AnalyticsParameterLevel) = @"level";
  
  /// Location (NSString). The Google <a href="https://developers.google.com/places/place-id">Place ID
  /// </a> that corresponds to the associated event. Alternatively, you can supply your own custom
  /// Location ID.
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterLocation : @"ChIJiyj437sx3YAR9kUWC8QkLzQ",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterLocation FIR_SWIFT_NAME(AnalyticsParameterLocation) =
      @"location";
  
  /// The advertising or marketing medium, for example: cpc, banner, email, push. Highly recommended
  /// (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterMedium : @"email",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterMedium FIR_SWIFT_NAME(AnalyticsParameterMedium) = @"medium";
  
  /// Number of nights staying at hotel (signed 64-bit integer as NSNumber).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterNumberOfNights : @(3),
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterNumberOfNights
      FIR_SWIFT_NAME(AnalyticsParameterNumberOfNights) = @"number_of_nights";
  
  /// Number of passengers traveling (signed 64-bit integer as NSNumber).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterNumberOfPassengers : @(11),
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterNumberOfPassengers
      FIR_SWIFT_NAME(AnalyticsParameterNumberOfPassengers) = @"number_of_passengers";
  
  /// Number of rooms for travel events (signed 64-bit integer as NSNumber).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterNumberOfRooms : @(2),
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterNumberOfRooms FIR_SWIFT_NAME(AnalyticsParameterNumberOfRooms) =
      @"number_of_rooms";
  
  /// Flight or Travel origin (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterOrigin : @"Mountain View, CA",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterOrigin FIR_SWIFT_NAME(AnalyticsParameterOrigin) = @"origin";
  
  /// Purchase price (double as NSNumber).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterPrice : @(1.0),
  ///       kFIRParameterCurrency : @"USD",  // e.g. $1.00 USD
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterPrice FIR_SWIFT_NAME(AnalyticsParameterPrice) = @"price";
  
  /// Purchase quantity (signed 64-bit integer as NSNumber).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterQuantity : @(1),
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterQuantity FIR_SWIFT_NAME(AnalyticsParameterQuantity) =
      @"quantity";
  
  /// Score in game (signed 64-bit integer as NSNumber).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterScore : @(4200),
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterScore FIR_SWIFT_NAME(AnalyticsParameterScore) = @"score";
  
  /// The search string/keywords used (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterSearchTerm : @"periodic table",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterSearchTerm FIR_SWIFT_NAME(AnalyticsParameterSearchTerm) =
      @"search_term";
  
  /// Shipping cost (double as NSNumber).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterShipping : @(9.50),
  ///       kFIRParameterCurrency : @"USD",  // e.g. $9.50 USD
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterShipping FIR_SWIFT_NAME(AnalyticsParameterShipping) =
      @"shipping";
  
  /// Sign up method (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterSignUpMethod : @"google",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterSignUpMethod FIR_SWIFT_NAME(AnalyticsParameterSignUpMethod) =
      @"sign_up_method";
  
  /// The origin of your traffic, such as an Ad network (for example, google) or partner (urban
  /// airship). Identify the advertiser, site, publication, etc. that is sending traffic to your
  /// property. Highly recommended (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterSource : @"InMobi",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterSource FIR_SWIFT_NAME(AnalyticsParameterSource) = @"source";
  
  /// The departure date, check-in date or rental start date for the item. This should be in
  /// YYYY-MM-DD format (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterStartDate : @"2015-09-14",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterStartDate FIR_SWIFT_NAME(AnalyticsParameterStartDate) =
      @"start_date";
  
  /// Tax amount (double as NSNumber).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterTax : @(1.0),
  ///       kFIRParameterCurrency : @"USD",  // e.g. $1.00 USD
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterTax FIR_SWIFT_NAME(AnalyticsParameterTax) = @"tax";
  
  /// If you're manually tagging keyword campaigns, you should use utm_term to specify the keyword
  /// (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterTerm : @"game",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterTerm FIR_SWIFT_NAME(AnalyticsParameterTerm) = @"term";
  
  /// A single ID for a ecommerce group transaction (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterTransactionID : @"ab7236dd9823",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterTransactionID FIR_SWIFT_NAME(AnalyticsParameterTransactionID) =
      @"transaction_id";
  
  /// Travel class (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterTravelClass : @"business",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterTravelClass FIR_SWIFT_NAME(AnalyticsParameterTravelClass) =
      @"travel_class";
  
  /// A context-specific numeric value which is accumulated automatically for each event type. This is
  /// a general purpose parameter that is useful for accumulating a key metric that pertains to an
  /// event. Examples include revenue, distance, time and points. Value should be specified as signed
  /// 64-bit integer or double as NSNumber. Notes: Values for pre-defined currency-related events
  /// (such as @c kFIREventAddToCart) should be supplied using double as NSNumber and must be
  /// accompanied by a @c kFIRParameterCurrency parameter. The valid range of accumulated values is
  /// [-9,223,372,036,854.77, 9,223,372,036,854.77]. Supplying a non-numeric value, omitting the
  /// corresponding @c kFIRParameterCurrency parameter, or supplying an invalid
  /// <a href="https://goo.gl/qqX3J2">currency code</a> for conversion events will cause that
  /// conversion to be omitted from reporting.
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterValue : @(3.99),
  ///       kFIRParameterCurrency : @"USD",  // e.g. $3.99 USD
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterValue FIR_SWIFT_NAME(AnalyticsParameterValue) = @"value";
  
  /// Name of virtual currency type (NSString).
  /// <pre>
  ///     NSDictionary *params = @{
  ///       kFIRParameterVirtualCurrencyName : @"virtual_currency_name",
  ///       // ...
  ///     };
  /// </pre>
  static NSString *const kFIRParameterVirtualCurrencyName
      FIR_SWIFT_NAME(AnalyticsParameterVirtualCurrencyName) = @"virtual_currency_name";
  