BetaReadonly BetaclipboardThe primary ClipboardItem object is always present (even if it's empty) and cannot be deleted. This object represents the main ClipboardItem object which is always accessible through the UI for cut/paste operations
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The ClipboardManager (accessible from the ExtensionContext) is responsible for the management of all ClipboardItem objects, and provides the user the ability to create new ClipboardItem objects for use within an extension.