https://doc.sitecore.com/xp/en/developers/104/sitecore-experience-manager/access-checklist,-multilist,-treelist,-and-treelistex-fields.html
Access Checklist, Multilist, Treelist, and TreelistEx fields | Sitecore Documentation
How to access Checklist, Multilist, Treelist, and TreelistEx fields using the Sitecore.Data.Fields.MultilistField class. You can access field types allowing...
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