--- /dev/null
+//
+// Answers.h
+// Crashlytics
+//
+// Copyright (c) 2015 Crashlytics, Inc. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+#import "ANSCompatibility.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+/**
+ * This class exposes the Answers Events API, allowing you to track key
+ * user user actions and metrics in your app.
+ */
+@interface Answers : NSObject
+
+/**
+ * Log a Sign Up event to see users signing up for your app in real-time, understand how
+ * many users are signing up with different methods and their success rate signing up.
+ *
+ * @param signUpMethodOrNil The method by which a user logged in, e.g. Twitter or Digits.
+ * @param signUpSucceededOrNil The ultimate success or failure of the login
+ * @param customAttributesOrNil A dictionary of custom attributes to associate with this event.
+ */
++ (void)logSignUpWithMethod:(nullable NSString *)signUpMethodOrNil
+ success:(nullable NSNumber *)signUpSucceededOrNil
+ customAttributes:(nullable ANS_GENERIC_NSDICTIONARY(NSString *, id) *)customAttributesOrNil;
+
+/**
+ * Log an Log In event to see users logging into your app in real-time, understand how many
+ * users are logging in with different methods and their success rate logging into your app.
+ *
+ * @param loginMethodOrNil The method by which a user logged in, e.g. email, Twitter or Digits.
+ * @param loginSucceededOrNil The ultimate success or failure of the login
+ * @param customAttributesOrNil A dictionary of custom attributes to associate with this event.
+ */
++ (void)logLoginWithMethod:(nullable NSString *)loginMethodOrNil
+ success:(nullable NSNumber *)loginSucceededOrNil
+ customAttributes:(nullable ANS_GENERIC_NSDICTIONARY(NSString *, id) *)customAttributesOrNil;
+
+/**
+ * Log a Share event to see users sharing from your app in real-time, letting you
+ * understand what content they're sharing from the type or genre down to the specific id.
+ *
+ * @param shareMethodOrNil The method by which a user shared, e.g. email, Twitter, SMS.
+ * @param contentNameOrNil The human readable name for this piece of content.
+ * @param contentTypeOrNil The type of content shared.
+ * @param contentIdOrNil The unique identifier for this piece of content. Useful for finding the top shared item.
+ * @param customAttributesOrNil A dictionary of custom attributes to associate with this event.
+ */
++ (void)logShareWithMethod:(nullable NSString *)shareMethodOrNil
+ contentName:(nullable NSString *)contentNameOrNil
+ contentType:(nullable NSString *)contentTypeOrNil
+ contentId:(nullable NSString *)contentIdOrNil
+ customAttributes:(nullable ANS_GENERIC_NSDICTIONARY(NSString *, id) *)customAttributesOrNil;
+
+/**
+ * Log an Invite Event to track how users are inviting other users into
+ * your application.
+ *
+ * @param inviteMethodOrNil The method of invitation, e.g. GameCenter, Twitter, email.
+ * @param customAttributesOrNil A dictionary of custom attributes to associate with this event.
+ */
++ (void)logInviteWithMethod:(nullable NSString *)inviteMethodOrNil
+ customAttributes:(nullable ANS_GENERIC_NSDICTIONARY(NSString *, id) *)customAttributesOrNil;
+
+/**
+ * Log a Purchase event to see your revenue in real-time, understand how many users are making purchases, see which
+ * items are most popular, and track plenty of other important purchase-related metrics.
+ *
+ * @param itemPriceOrNil The purchased item's price.
+ * @param currencyOrNil The ISO4217 currency code. Example: USD
+ * @param purchaseSucceededOrNil Was the purchase successful or unsuccessful
+ * @param itemNameOrNil The human-readable form of the item's name. Example:
+ * @param itemTypeOrNil The type, or genre of the item. Example: Song
+ * @param itemIdOrNil The machine-readable, unique item identifier Example: SKU
+ * @param customAttributesOrNil A dictionary of custom attributes to associate with this purchase.
+ */
++ (void)logPurchaseWithPrice:(nullable NSDecimalNumber *)itemPriceOrNil
+ currency:(nullable NSString *)currencyOrNil
+ success:(nullable NSNumber *)purchaseSucceededOrNil
+ itemName:(nullable NSString *)itemNameOrNil
+ itemType:(nullable NSString *)itemTypeOrNil
+ itemId:(nullable NSString *)itemIdOrNil
+ customAttributes:(nullable ANS_GENERIC_NSDICTIONARY(NSString *, id) *)customAttributesOrNil;
+
+/**
+ * Log a Level Start Event to track where users are in your game.
+ *
+ * @param levelNameOrNil The level name
+ * @param customAttributesOrNil A dictionary of custom attributes to associate with this level start event.
+ */
++ (void)logLevelStart:(nullable NSString *)levelNameOrNil
+ customAttributes:(nullable ANS_GENERIC_NSDICTIONARY(NSString *, id) *)customAttributesOrNil;
+
+/**
+ * Log a Level End event to track how users are completing levels in your game.
+ *
+ * @param levelNameOrNil The name of the level completed, E.G. "1" or "Training"
+ * @param scoreOrNil The score the user completed the level with.
+ * @param levelCompletedSuccesfullyOrNil A boolean representing whether or not the level was completed successfully.
+ * @param customAttributesOrNil A dictionary of custom attributes to associate with this event.
+ */
++ (void)logLevelEnd:(nullable NSString *)levelNameOrNil
+ score:(nullable NSNumber *)scoreOrNil
+ success:(nullable NSNumber *)levelCompletedSuccesfullyOrNil
+ customAttributes:(nullable ANS_GENERIC_NSDICTIONARY(NSString *, id) *)customAttributesOrNil;
+
+/**
+ * Log an Add to Cart event to see users adding items to a shopping cart in real-time, understand how
+ * many users start the purchase flow, see which items are most popular, and track plenty of other important
+ * purchase-related metrics.
+ *
+ * @param itemPriceOrNil The purchased item's price.
+ * @param currencyOrNil The ISO4217 currency code. Example: USD
+ * @param itemNameOrNil The human-readable form of the item's name. Example:
+ * @param itemTypeOrNil The type, or genre of the item. Example: Song
+ * @param itemIdOrNil The machine-readable, unique item identifier Example: SKU
+ * @param customAttributesOrNil A dictionary of custom attributes to associate with this event.
+ */
++ (void)logAddToCartWithPrice:(nullable NSDecimalNumber *)itemPriceOrNil
+ currency:(nullable NSString *)currencyOrNil
+ itemName:(nullable NSString *)itemNameOrNil
+ itemType:(nullable NSString *)itemTypeOrNil
+ itemId:(nullable NSString *)itemIdOrNil
+ customAttributes:(nullable ANS_GENERIC_NSDICTIONARY(NSString *, id) *)customAttributesOrNil;
+
+/**
+ * Log a Start Checkout event to see users moving through the purchase funnel in real-time, understand how many
+ * users are doing this and how much they're spending per checkout, and see how it related to other important
+ * purchase-related metrics.
+ *
+ * @param totalPriceOrNil The total price of the cart.
+ * @param currencyOrNil The ISO4217 currency code. Example: USD
+ * @param itemCountOrNil The number of items in the cart.
+ * @param customAttributesOrNil A dictionary of custom attributes to associate with this event.
+ */
++ (void)logStartCheckoutWithPrice:(nullable NSDecimalNumber *)totalPriceOrNil
+ currency:(nullable NSString *)currencyOrNil
+ itemCount:(nullable NSNumber *)itemCountOrNil
+ customAttributes:(nullable ANS_GENERIC_NSDICTIONARY(NSString *, id) *)customAttributesOrNil;
+
+/**
+ * Log a Rating event to see users rating content within your app in real-time and understand what
+ * content is most engaging, from the type or genre down to the specific id.
+ *
+ * @param ratingOrNil The integer rating given by the user.
+ * @param contentNameOrNil The human readable name for this piece of content.
+ * @param contentTypeOrNil The type of content shared.
+ * @param contentIdOrNil The unique identifier for this piece of content. Useful for finding the top shared item.
+ * @param customAttributesOrNil A dictionary of custom attributes to associate with this event.
+ */
++ (void)logRating:(nullable NSNumber *)ratingOrNil
+ contentName:(nullable NSString *)contentNameOrNil
+ contentType:(nullable NSString *)contentTypeOrNil
+ contentId:(nullable NSString *)contentIdOrNil
+ customAttributes:(nullable ANS_GENERIC_NSDICTIONARY(NSString *, id) *)customAttributesOrNil;
+
+/**
+ * Log a Content View event to see users viewing content within your app in real-time and
+ * understand what content is most engaging, from the type or genre down to the specific id.
+ *
+ * @param contentNameOrNil The human readable name for this piece of content.
+ * @param contentTypeOrNil The type of content shared.
+ * @param contentIdOrNil The unique identifier for this piece of content. Useful for finding the top shared item.
+ * @param customAttributesOrNil A dictionary of custom attributes to associate with this event.
+ */
++ (void)logContentViewWithName:(nullable NSString *)contentNameOrNil
+ contentType:(nullable NSString *)contentTypeOrNil
+ contentId:(nullable NSString *)contentIdOrNil
+ customAttributes:(nullable ANS_GENERIC_NSDICTIONARY(NSString *, id) *)customAttributesOrNil;
+
+/**
+ * Log a Search event allows you to see users searching within your app in real-time and understand
+ * exactly what they're searching for.
+ *
+ * @param queryOrNil The user's query.
+ * @param customAttributesOrNil A dictionary of custom attributes to associate with this event.
+ */
++ (void)logSearchWithQuery:(nullable NSString *)queryOrNil
+ customAttributes:(nullable ANS_GENERIC_NSDICTIONARY(NSString *, id) *)customAttributesOrNil;
+
+/**
+ * Log a Custom Event to see user actions that are uniquely important for your app in real-time, to see how often
+ * they're performing these actions with breakdowns by different categories you add. Use a human-readable name for
+ * the name of the event, since this is how the event will appear in Answers.
+ *
+ * @param eventName The human-readable name for the event.
+ * @param customAttributesOrNil A dictionary of custom attributes to associate with this event. Attribute keys
+ * must be <code>NSString</code> and values must be <code>NSNumber</code> or <code>NSString</code>.
+ * @discussion How we treat <code>NSNumbers</code>:
+ * We will provide information about the distribution of values over time.
+ *
+ * How we treat <code>NSStrings</code>:
+ * NSStrings are used as categorical data, allowing comparison across different category values.
+ * Strings are limited to a maximum length of 100 characters, attributes over this length will be
+ * truncated.
+ *
+ * When tracking the Tweet views to better understand user engagement, sending the tweet's length
+ * and the type of media present in the tweet allows you to track how tweet length and the type of media influence
+ * engagement.
+ */
++ (void)logCustomEventWithName:(NSString *)eventName
+ customAttributes:(nullable ANS_GENERIC_NSDICTIONARY(NSString *, id) *)customAttributesOrNil;
+
+@end
+
+NS_ASSUME_NONNULL_END