import { type ElementPartInfo, type PartInfo } from '../../lit-exports/all-lit-exports.js';
/**
 * The full type for `ElementPartInfo` because `lit`'s built-in type leaves out of most of its
 * interface.
 *
 * @category Internal
 */
export type FullElementPartInfo = ElementPartInfo /** For some reason these aren't defined in lit's types already, even though they _do_ exist. */ & {
    element: Element;
    options: {
        host: Element;
        renderBefore: Element;
        isConnected: boolean;
    };
};
/**
 * Extracts the element from the given part info. Used in lit directives.
 *
 * @category Internal
 */
export declare function extractElement(partInfo: PartInfo, directiveName: string): Element;
/**
 * Asserts that the given part info is an instance of {@link FullElementPartInfo}.
 *
 * @category Internal
 */
export declare function assertIsElementPartInfo(partInfo: PartInfo, directiveName: string): asserts partInfo is FullElementPartInfo;