Async Action in Behaviour Designer

AsyncAction.cs

using System.Collections;
using BehaviorDesigner.Runtime.Tasks;
using UnityEngine;

internal class AsyncAction : Action
{
    private bool isCoroutineRunning;

    public override void OnStart()
    {
        StartCoroutine(DoAction());
    }

    public override TaskStatus OnUpdate()
    {        
        return isCoroutineRunning ? TaskStatus.Running : TaskStatus.Success;
    }

    private IEnumerator DoAction()
    {
        isCoroutineRunning = true;

        yield return null;

        isCoroutineRunning = false;
    }
}