public class Event { +  /** A unique identifier for your event. */   public String eventType;++  /**+   * A readable ID specified by you. Must have a minimum length of 5 characters. Required unless+   * device_id is present.+   */   public String userId;++  /**+   * A device-specific identifier, such as the Identifier for Vendor on iOS. Required unless user_id+   * is present. If a device_id is not sent with the event, it will be set to a hashed version of+   * the user_id.+   */   public String deviceId; +  /**+   * The timestamp of the event in milliseconds since epoch. If time is not sent with the event, it+   * will be set to the request upload time.+   */   public long timestamp = System.currentTimeMillis();++  /** The current Latitude of the user. */   public double locationLat;++  /** The current Longitude of the user. */   public double locationLng; +  /** The current version of your application. */   public String appVersion;++  /** Legacy SDK API, only for use with older API. The application's version name. */   public String versionName; +  /** Platform of the device. */   public String platform;++  /** The name of the mobile operating system or browser that the user is using. */   public String osName;++  /** The device brand that the user is using. */   public String deviceBrand;++  /** The device manufacturer that the user is using. */   public String deviceManufacturer;++  /** The device model that the user is using. */   public String deviceModel;++  /** The carrier that the user is using. */   public String carrier; +  /** The current country of the user. */   public String country;++  /** The current region of the user. */   public String region;++  /** The current city of the user. */   public String city;++  /** The current Designated Market Area of the user. */   public String dma; +  /** (iOS) Identifier for Advertiser. */   public String idfa;++  /** (iOS) Identifier for Vendor. */   public String idfv;++  /** (Android) Google Play Services advertising ID */   public String adid;++  /** (Android) Android ID (not the advertising ID) */   public String androidId; +  /** The (human) language set by the user. */   public String language;++  /**+   * The IP address of the user. Use "$remote" to use the IP address on the upload request. We will+   * use the IP address to reverse lookup a user's location (city, country, region, and DMA).+   * Amplitude has the ability to drop the location and IP address from events once it reaches our+   * servers. You can submit a request to our platform specialist team here to configure this for+   * you.+   */   public String ip;++  /**+   * A dictionary of key-value pairs that represent additional data to be sent along with the event.+   * You can store property values in an array. Date values are transformed into string values.+   * Object depth may not exceed 40 layers.+   */   public JSONObject eventProperties;++  /**+   * A dictionary of key-value pairs that represent additional data tied to the user. You can store+   * property values in an array. Date values are transformed into string values. Object depth may+   * not exceed 40 layers.+   */   public JSONObject userProperties; +  /**+   * The price of the item purchased. Required for revenue data if the revenue field is not sent.+   * You can use negative values to indicate refunds.+   */   public double price;++  /** The quantity of the item purchased. Defaults to 1 if not specified. */   public int quantity;++  /**+   * revenue = price * quantity. If you send all 3 fields of price, quantity, and revenue, then+   * (price * quantity) will be used as the revenue value. You can use negative values to indicate+   * refunds.+   */   public double revenue;++  /**+   * An identifier for the item purchased. You must send a price and quantity or revenue with this+   * field.+   */   public int productId;++  /**+   * The type of revenue for the item purchased. You must send a price and quantity or revenue with+   * this field.+   */   public String revenueType; +  /**+   * An incrementing counter to distinguish events with the same user_id and timestamp from each+   * other. We recommend you send an event_id, increasing over time, especially if you expect events+   * to occur simultanenously.+   */   public int eventId;++  /**+   * The start time of the session in milliseconds since epoch (Unix Timestamp), necessary if you+   * want to associate events with a particular system. A session_id of -1 is the same as no+   * session_id specified.+   */   public int sessionId;++  /**+   * A unique identifier for the event. We will deduplicate subsequent events sent with an insert_id+   * we have already seen before within the past 7 days. We recommend generation a UUID or using+   * some combination of device_id, user_id, event_type, event_id, and time.+   */   public String insertId = UUID.randomUUID().toString(); +  /**+   * This feature is only available to Enterprise customers who have purchased the Accounts add-on.+   * This field adds a dictionary of key-value pairs that represent groups of users to the event as+   * an event-level group. You can only track up to 5 groups.+   */   public JSONObject groups;+

  public class Event { +  /** A unique identifier for your event. */   public String eventType;+  /**+   * A readable ID specified by you. Must have a minimum length of 5 characters. Required unless+   * device_id is present.+   */   public String userId;+  /**+   * A device-specific identifier, such as the Identifier for Vendor on iOS. Required unless user_id+   * is present. If a device_id is not sent with the event, it will be set to a hashed version of+   * the user_id.+   */   public String deviceId; +  /**+   * The timestamp of the event in milliseconds since epoch. If time is not sent with the event, it+   * will be set to the request upload time.+   */   public long timestamp = System.currentTimeMillis();+  /** The current Latitude of the user. */   public double locationLat;+  /** The current Longitude of the user. */   public double locationLng; +  /** The current version of your application. */   public String appVersion;+

  public class Event { +  /** A unique identifier for your event. */   public String eventType;

  public class Event { +  /** A unique identifier for your event. */   public String eventType;+  /**+   * A readable ID specified by you. Must have a minimum length of 5 characters. Required unless+   * device_id is present.+   */   public String userId;+  /**+   * A device-specific identifier, such as the Identifier for Vendor on iOS. Required unless user_id+   * is present. If a device_id is not sent with the event, it will be set to a hashed version of+   * the user_id.+   */   public String deviceId; +  /**+   * The timestamp of the event in milliseconds since epoch. If time is not sent with the event, it+   * will be set to the request upload time.+   */   public long timestamp = System.currentTimeMillis();+  /** The current Latitude of the user. */   public double locationLat;+  /** The current Longitude of the user. */   public double locationLng; +  /** The current version of your application. */   public String appVersion;+   public String versionName; +  /** Platform of the device. */   public String platform;+  /** The name of the mobile operating system or browser that the user is using. */   public String osName;+  /** The device brand that the user is using. */   public String deviceBrand;+  /** The device manufacturer that the user is using. */   public String deviceManufacturer;+  /** The device model that the user is using. */   public String deviceModel;+  /** The carrier that the user is using. */   public String carrier; +  /** The current country of the user. */   public String country;+  /** The current region of the user. */   public String region;+  /** The current city of the user. */   public String city;+  /** The current Designated Market Area of the user. */   public String dma; +  /** (iOS) Identifier for Advertiser. */   public String idfa;+  /** (iOS) Identifier for Vendor. */   public String idfv;+  /** (Android) Google Play Services advertising ID */   public String adid;+  /** (Android) Android ID (not the advertising ID) */   public String androidId;-+  /** The (human) language set by the user. */   public String language;+  /**+   * The IP address of the user. Use "$remote" to use the IP address on the upload request. We will+   * use the IP address to reverse lookup a user's location (city, country, region, and DMA).+   * Amplitude has the ability to drop the location and IP address from events once it reaches our+   * servers. You can submit a request to our platform specialist team here to configure this for+   * you.+   */   public String ip;+  /**+   * A dictionary of key-value pairs that represent additional data to be sent along with the event.+   * You can store property values in an array. Date values are transformed into string values.+   * Object depth may not exceed 40 layers.+   */   public JSONObject eventProperties;+  /**+   * A dictionary of key-value pairs that represent additional data tied to the user. You can store+   * property values in an array. Date values are transformed into string values. Object depth may+   * not exceed 40 layers.+   */   public JSONObject userProperties; +  /**+   * The price of the item purchased. Required for revenue data if the revenue field is not sent.+   * You can use negative values to indicate refunds.+   */   public double price;+  /** The quantity of the item purchased. Defaults to 1 if not specified. */   public int quantity;+  /**+   * revenue = price quantity. If you send all 3 fields of price, quantity, and revenue, then (price