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diff --git a/chromium/third_party/node/node_modules/lit-html/directives/async-append.d.ts b/chromium/third_party/node/node_modules/lit-html/directives/async-append.d.ts
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+/**
+ * @license
+ * Copyright 2017 Google LLC
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+import { ChildPart } from '../lit-html.js';
+import { DirectiveParameters, PartInfo } from '../directive.js';
+import { AsyncReplaceDirective } from './async-replace.js';
+declare class AsyncAppendDirective extends AsyncReplaceDirective {
+    private __childPart;
+    constructor(partInfo: PartInfo);
+    update(part: ChildPart, params: DirectiveParameters<this>): typeof import("../lit-html.js").noChange | undefined;
+    protected commitValue(value: unknown, index: number): void;
+}
+/**
+ * A directive that renders the items of an async iterable[1], appending new
+ * values after previous values, similar to the built-in support for iterables.
+ * This directive is usable only in child expressions.
+ *
+ * Async iterables are objects with a [Symbol.asyncIterator] method, which
+ * returns an iterator who's `next()` method returns a Promise. When a new
+ * value is available, the Promise resolves and the value is appended to the
+ * Part controlled by the directive. If another value other than this
+ * directive has been set on the Part, the iterable will no longer be listened
+ * to and new values won't be written to the Part.
+ *
+ * [1]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/for-await...of
+ *
+ * @param value An async iterable
+ * @param mapper An optional function that maps from (value, index) to another
+ *     value. Useful for generating templates for each item in the iterable.
+ */
+export declare const asyncAppend: (value: AsyncIterable<unknown>, _mapper?: ((v: unknown, index?: number | undefined) => unknown) | undefined) => import("../directive.js").DirectiveResult<typeof AsyncAppendDirective>;
+/**
+ * The type of the class that powers this directive. Necessary for naming the
+ * directive's return type.
+ */
+export type { AsyncAppendDirective };
+//# sourceMappingURL=async-append.d.ts.map
+\ No newline at end of file