UnityEditor.OptimizedGUIBlock.Dispose C# (CSharp) Method

        public extern void Dispose();
        public void End()

 private void CleanupPropertyEditor()
 {
     if (m_OptimizedBlock != null)
     {
         m_OptimizedBlock.Dispose();
         m_OptimizedBlock = null;
     }
     if (m_SerializedObject != null)
     {
         m_SerializedObject.Dispose();
         m_SerializedObject = null;
     }
 }