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diff --git a/chromium/third_party/node/node_modules/lit-html/directives/style-map.d.ts b/chromium/third_party/node/node_modules/lit-html/directives/style-map.d.ts
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+/**
+ * @license
+ * Copyright 2018 Google LLC
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+import { AttributePart, noChange } from '../lit-html.js';
+import { Directive, DirectiveParameters, PartInfo } from '../directive.js';
+/**
+ * A key-value set of CSS properties and values.
+ *
+ * The key should be either a valid CSS property name string, like
+ * `'background-color'`, or a valid JavaScript camel case property name
+ * for CSSStyleDeclaration like `backgroundColor`.
+ */
+export interface StyleInfo {
+    [name: string]: string | number | undefined | null;
+}
+declare class StyleMapDirective extends Directive {
+    private _previousStyleProperties?;
+    constructor(partInfo: PartInfo);
+    render(styleInfo: Readonly<StyleInfo>): string;
+    update(part: AttributePart, [styleInfo]: DirectiveParameters<this>): string | typeof noChange;
+}
+/**
+ * A directive that applies CSS properties to an element.
+ *
+ * `styleMap` can only be used in the `style` attribute and must be the only
+ * expression in the attribute. It takes the property names in the
+ * {@link StyleInfo styleInfo} object and adds the properties to the inline
+ * style of the element.
+ *
+ * Property names with dashes (`-`) are assumed to be valid CSS
+ * property names and set on the element's style object using `setProperty()`.
+ * Names without dashes are assumed to be camelCased JavaScript property names
+ * and set on the element's style object using property assignment, allowing the
+ * style object to translate JavaScript-style names to CSS property names.
+ *
+ * For example `styleMap({backgroundColor: 'red', 'border-top': '5px', '--size':
+ * '0'})` sets the `background-color`, `border-top` and `--size` properties.
+ *
+ * @param styleInfo
+ * @see {@link https://lit.dev/docs/templates/directives/#stylemap styleMap code samples on Lit.dev}
+ */
+export declare const styleMap: (styleInfo: Readonly<StyleInfo>) => import("../directive.js").DirectiveResult<typeof StyleMapDirective>;
+/**
+ * The type of the class that powers this directive. Necessary for naming the
+ * directive's return type.
+ */
+export type { StyleMapDirective };
+//# sourceMappingURL=style-map.d.ts.map
+\ No newline at end of file