GiftsButton

public sealed class GiftsButton : EncoreTrigger
{
    public static GiftsButton Create(string placement, GiftsButtonOptions options = null);
}

public sealed class GiftsButtonOptions : TriggerOptions
{
}

using EncoreKit;
using UnityEngine;

public class DailyRewardsScreen : MonoBehaviour
{
    private GiftsButton _gifts;

    private void Start()
    {
        _gifts = GiftsButton.Create("daily_rewards", new GiftsButtonOptions { Headline = "You've got a gift" });
        _gifts.Result += result =>
        {
            if (result.Claim?.TransactionId is string transactionId) SaveClaim(transactionId);
        };
        _gifts.SetFrame(new Rect(40, Screen.height - 200, Screen.width - 80, 0));
    }

    public void OnPauseMenuShown() => _gifts.SetVisible(false);
    public void OnPauseMenuHidden() => _gifts.SetVisible(true);

    private void OnDestroy() => _gifts?.Dispose();

    private void SaveClaim(string transactionId) { /* your storage */ }
}

public sealed class EncoreGiftsButtonView : EncoreTriggerViewBase
{
    public GiftsButton Button { get; }          // null until the button exists
}