FBSDKChooseContextDialog
@interfaceFBSDKChooseContextDialog:FBSDKContextWebDialogA dialog for the choose context through app switch
@interfaceFBSDKChooseContextDialog:FBSDKContextWebDialog-(instancetype)initNS_UNAVAILABLE;+(instancetype)newNS_UNAVAILABLE;+(nonnullinstancetype)dialogWithContent:(nonnullFBSDKChooseContextContent*)contentdelegate:(nullableid<FBSDKContextDialogDelegate>)delegate;convenienceinit(content:FBSDKChooseContextContent,delegate:ContextDialogDelegate?)+(nonnullinstancetype)dialogWithContent:(nonnullFBSDKChooseContextContent*)contentdelegate:(nonnullid<FBSDKContextDialogDelegate>)delegateinternalUtility:(nonnullid<FBSDKInternalUtility>)internalUtility;