Update packages/scoped-custom-element-registry/src/types.d.ts

Co-authored-by: Justin Fagnani <[email protected]>

Author: sorvell

packages/scoped-custom-element-registry/src/types.d.ts

@@ -44,6 +44,14 @@ declare global {
 
   // https://dom.spec.whatwg.org/#dictdef-importnodeoptions
   interface ImportNodeOptions {
+    /**
+      * A boolean flag, whose default value is `false`, which controls whether to include the entire DOM
+      * subtree of the `externalNode` in the import. `selfOnly` has the opposite effect of supplying a 
+      * boolean as the `options` argument.
+      * 
+      * If `selfOnly` is set to `false`, then `externalNode` and all of its descendants are copied.
+      * If `selfOnly` is set to `true`, then only `externalNode` is imported — the new node has no children.
+      */
     selfOnly?: boolean;
     customElementRegistry?: CustomElementRegistry;
   }