UnityEditor.PackageImport.OnBeforeSerialize C# (CSharp) Method

        public void OnBeforeSerialize()
        {
            if (this.m_Tree != null)
            {
                if (this.m_EnabledFolders == null)
                {
                    this.m_EnabledFolders = new List<string>();
                }
                this.m_EnabledFolders.Clear();
                this.m_Tree.GetEnabledFolders(this.m_EnabledFolders);
            }
        }