FPSSample/Packages/com.unity.entities/Unity.Transforms/FrozenComponent.cs

using System;
using Unity.Entities;
using Unity.Mathematics;

namespace Unity.Transforms
{
    /// <summary>
    /// Frozen is added by system when Static is resolved.
    /// Signals that LocalToWorld will no longer be updated.
    /// Read-only from other systems.
    /// User responsible for removing.
    /// </summary>
    [Serializable]
    public struct Frozen : IComponentData
    {
    }

    public class FrozenComponent : ComponentDataWrapper<Frozen>
    {
    }
}