Export the underlying type of the keyed directive (#3130)

lit · Jul 21, 2022 · 1f0567f · 1f0567f
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diff --git a/.changeset/fast-chairs-itch.md b/.changeset/fast-chairs-itch.md
@@ -0,0 +1,6 @@
+---
+"lit-html": patch
+"lit": patch
+---
+
+Export the underlying type of the `keyed` directive.
diff --git a/packages/lit-html/src/directives/keyed.ts b/packages/lit-html/src/directives/keyed.ts
@@ -43,3 +43,9 @@ class Keyed extends Directive {
  * animation techniques.
  */
 export const keyed = directive(Keyed);
+
+/**
+ * The type of the class that powers this directive. Necessary for naming the
+ * directive's return type.
+ */
+ export type {Keyed};