IEventSubscription.cs

using Godot;
using System;

///<summary>
/// Defines a contract for an event subscription to be used by <see cref="EventBase"/>.
///</summary>
public interface IEventSubscription
{
    /// <summary>
    /// Gets or sets a <see cref="SubscriptionToken"/> that identifies this <see cref="IEventSubscription"/>.
    /// </summary>
    /// <value>A token that identifies this <see cref="IEventSubscription"/>.</value>
    SubscriptionToken SubscriptionToken { get; set; }

    /// <summary>
    /// Gets the execution strategy to publish this event.
    /// </summary>
    /// <returns>An <see cref="Action{T}"/> with the execution strategy, or <see langword="null" /> if the <see cref="IEventSubscription"/> is no longer valid.</returns>
    Action<object[]> GetExecutionStrategy();
}