Exposing OnlineIdentityInterface::GetLinkedAccountAuthToken to Blueprint

Hello, I’m new to C++ and I’m trying to expose OnlineIdentityInterface::GetLinkedAccountAuthToken to blueprint for the Mod.io plugin I’m using

I can’t figure out how I’m supposed to use the delegates here.

		//Linked Account Auth Token for Mod.io Login
		UFUNCTION(BlueprintCallable, Category = "Online System")
		void GetLinkedAccountAuthToken(int32 LocalUserNum, FString TokenType);

		UPROPERTY(BlueprintAssignable, Category = "Online System")
			IOnlineIdentity::FOnGetLinkedAccountAuthTokenCompleteDelegate LinkedAccountAuthToken;
void UNeithGameInstance::GetLinkedAccountAuthToken(int32 LocalUserNum, FString TokenType)
{
	IOnlineIdentityPtr OnlineIdentityInterface = Online::GetIdentityInterface();
	if (OnlineIdentityInterface.IsValid())
	{
		OnlineIdentityInterface->GetLinkedAccountAuthToken(LocalUserNum, TokenType, LinkedAccountAuthToken);
	}
}

Documentation here
https://pubdocs.modapi.io/ue/documentation.html#_ssoexternal_authentication