UnityEditor.AudioMixerGroupTreeView.AddSiblingGroupPopupCallback C# (CSharp) Method

        public void AddSiblingGroupPopupCallback(object obj)
        {
            AudioMixerGroupPopupContext context = (AudioMixerGroupPopupContext) obj;
            if ((context.groups != null) && (context.groups.Length > 0))
            {
                AudioMixerTreeViewNode node = this.m_AudioGroupTree.FindItem(context.groups[0].GetInstanceID()) as AudioMixerTreeViewNode;
                if (node != null)
                {
                    AudioMixerTreeViewNode parent = node.parent as AudioMixerTreeViewNode;
                    this.AddAudioMixerGroup(parent.group);
                }
            }
        }