ml-agents/com.unity.ml-agents/Editor/EditorUtilities.cs

using UnityEngine;

namespace Unity.MLAgents.Editor
{
    /// <summary>
    /// A static helper class for the Editor components of the ML-Agents SDK.
    /// </summary>
    public static class EditorUtilities
    {
        /// <summary>
        /// Whether or not properties that affect the model can be updated at the current time.
        /// </summary>
        /// <returns></returns>
        public static bool CanUpdateModelProperties()
        {
            return !Application.isPlaying;
        }
    }
}