protected override void OnUpdate()
    {
        var entities          = _query.ToEntityArray(Allocator.TempJob);
        var exampleComponents = _query.ToComponentDataArray <ExampleComponent>(Allocator.TempJob);

        for (var i = 0; i < entities.Length; i++)
        {
            var exampleComponent = exampleComponents[i];
            var entity           = entities[i];

            exampleComponent.Time += Time.DeltaTime;

            if (DynamicBufferHashSet.Length <TestHashSetBufferElement>(EntityManager, entity) == 0 &&
                !exampleComponent.Remove && exampleComponent.Time > 3f && exampleComponent.Time < 5f)
            {
                DynamicBufferHashSet.TryAdd(EntityManager, entity, new TestHashSetBufferElement
                {
                    Value = 12345
                });
                DynamicBufferHashSet.TryAdd(EntityManager, entity, new TestHashSetBufferElement
                {
                    Value = 78901
                });
                DynamicBufferHashSet.TryAdd(EntityManager, entity, new TestHashSetBufferElement
                {
                    Value = 5674654
                });
            }

            if (exampleComponent.Remove)
            {
                DynamicBufferHashSet.TryRemove(EntityManager, entity, new TestHashSetBufferElement
                {
                    Value = 78901
                });
                DynamicBufferHashSet.TryRemove(EntityManager, entity, new TestHashSetBufferElement
                {
                    Value = 5674654
                });
            }

            if (exampleComponent.Time > 7f)
            {
                exampleComponent.Remove = true;
            }

            if (exampleComponent.Time > 10f && exampleComponent.Remove)
            {
                exampleComponent.Remove = false;
                exampleComponent.Check1 = DynamicBufferHashSet.Contains(EntityManager, entity, new TestHashSetBufferElement
                {
                    Value = 12345
                });
                exampleComponent.Check2 = DynamicBufferHashSet.Contains(EntityManager, entity, new TestHashSetBufferElement
                {
                    Value = 54321
                });
            }

            exampleComponents[i] = exampleComponent;
        }

        _query.CopyFromComponentDataArray(exampleComponents);

        entities.Dispose();
        exampleComponents.Dispose();
    }
        public void Execute(ArchetypeChunk chunk, int chunkIndex, int firstEntityIndex)
        {
            NativeArray <Entity> entities = chunk.GetNativeArray(EntityType);

            NativeArray <ExampleComponent> exampleComponents = chunk.GetNativeArray(ExampleComponentType);

            for (int i = exampleComponents.Length - 1; i >= 0; i--)
            {
                var exampleComponent = exampleComponents[i];

                exampleComponent.Time += DeltaTime;

                Buffer.Init(entities[i]);

                if (Buffer.Length == 0 && !exampleComponent.Remove && exampleComponent.Time > 3f && exampleComponent.Time < 5f)
                {
                    DynamicBufferHashSet.TryAdd(Buffer, new TestHashSetBufferElement
                    {
                        Value = 12345
                    });
                    DynamicBufferHashSet.TryAdd(Buffer, new TestHashSetBufferElement
                    {
                        Value = 78901
                    });
                    DynamicBufferHashSet.TryAdd(Buffer, new TestHashSetBufferElement
                    {
                        Value = 5674654
                    });
                }

                if (exampleComponent.Remove)
                {
                    DynamicBufferHashSet.TryRemove(Buffer, new TestHashSetBufferElement
                    {
                        Value = 78901
                    });
                    DynamicBufferHashSet.TryRemove(Buffer, new TestHashSetBufferElement
                    {
                        Value = 5674654
                    });
                }

                if (exampleComponent.Time > 7f)
                {
                    exampleComponent.Remove = true;
                }

                if (exampleComponent.Time > 10f && exampleComponent.Remove)
                {
                    exampleComponent.Remove = false;
                    exampleComponent.Check1 = DynamicBufferHashSet.Contains(Buffer, new TestHashSetBufferElement
                    {
                        Value = 12345
                    });
                    exampleComponent.Check2 = DynamicBufferHashSet.Contains(Buffer, new TestHashSetBufferElement
                    {
                        Value = 54321
                    });
                }

                exampleComponents[i] = exampleComponent;
            }
        }