SpaceshipDemo/Assets/Scripts/Actions/VFXSendEventAction.cs

using GameplayIngredients.Actions;
using UnityEngine;
using UnityEngine.Experimental.VFX;
using UnityEngine.Experimental.VFX.Utility;

public class VFXSendEventAction : ActionBase
{
    public VisualEffect visualEffect;

    public string eventName = "Event";

    public override void Execute(GameObject instigator = null)
    {
        int id = Shader.PropertyToID(eventName);
        var attrib = visualEffect.CreateVFXEventAttribute();
        visualEffect.SendEvent(eventName, attrib);
    }
}