Create an instance of this class to set additional parameters for each custom event object. The
additional parameters for a custom event are keyed by the custom event label. These extras are
passed to your implementation of GADCustomEventBanner or GADCustomEventInterstitial.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2021-03-03 UTC."],[],[],null,["GADCustomEventExtras \n\n class GADCustomEventExtras : NSObject, ../Protocols.html#/c:objc(pl)GADAdNetworkExtras\n\nCreate an instance of this class to set additional parameters for each custom event object. The\nadditional parameters for a custom event are keyed by the custom event label. These extras are\npassed to your implementation of GADCustomEventBanner or GADCustomEventInterstitial.\n- `\n ``\n ``\n `\n\n [setExtras(_:forLabel:)](#/c:objc(cs)GADCustomEventExtras(im)setExtras:forLabel:)`\n ` \n Set additional parameters for the custom event with label \\|label\\|. To remove additional\n parameters associated with \\|label\\|, pass in nil for \\|extras\\|. \n\n Declaration \n Swift \n\n func setExtras(_ extras: [AnyHashable : Any]?, forLabel label: String)\n\n- `\n ``\n ``\n `\n\n [extras(forLabel:)](#/c:objc(cs)GADCustomEventExtras(im)extrasForLabel:)`\n ` \n Retrieve the extras for \\|label\\|. \n\n Declaration \n Swift \n\n func extras(forLabel label: String) -\u003e [AnyHashable : Any]?\n\n- `\n ``\n ``\n `\n\n [removeAllExtras()](#/c:objc(cs)GADCustomEventExtras(im)removeAllExtras)`\n ` \n Removes all the extras set on this instance. \n\n Declaration \n Swift \n\n func removeAllExtras()\n\n- `\n ``\n ``\n `\n\n [allExtras()](#/c:objc(cs)GADCustomEventExtras(im)allExtras)`\n ` \n Returns all the extras set on this instance. \n\n Declaration \n Swift \n\n func allExtras() -\u003e [AnyHashable : Any]"]]