/**
 * @license
 * Copyright (c) 2018 The Polymer Project Authors. All rights reserved.
 * This code may only be used under the BSD style license found at
 * http://polymer.github.io/LICENSE.txt
 * The complete set of authors may be found at
 * http://polymer.github.io/AUTHORS.txt
 * The complete set of contributors may be found at
 * http://polymer.github.io/CONTRIBUTORS.txt
 * Code distributed by Google as part of the polymer project is also
 * subject to an additional IP rights grant found at
 * http://polymer.github.io/PATENTS.txt
 */
import { Part } from '../lit-html.js';
export interface StyleInfo {
    readonly [name: string]: string;
}
/**
 * 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 `styleInfo`
 * object and adds the property values as CSS properties. 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 {StyleInfo}
 */
export declare const styleMap: (styleInfo: StyleInfo) => (part: Part) => void;

